Compass Tech., INC. v. Tseng Lab., INC. ( 1995 )


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  •                                                                                                                            Opinions of the United
    1995 Decisions                                                                                                             States Court of Appeals
    for the Third Circuit
    12-13-1995
    Compass Tech., INC. v. Tseng Lab., INC.
    Precedential or Non-Precedential:
    Docket 95-1060
    Follow this and additional works at: http://digitalcommons.law.villanova.edu/thirdcircuit_1995
    Recommended Citation
    "Compass Tech., INC. v. Tseng Lab., INC." (1995). 1995 Decisions. Paper 306.
    http://digitalcommons.law.villanova.edu/thirdcircuit_1995/306
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    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    ______________________________
    NO. 95-1060
    ______________________________
    COMPASS TECHNOLOGY, INC.,
    Appellant
    v.
    TSENG LABORATORIES, INC.
    WANG LABORATORIES, INC.
    _________________
    On Appeal from the United States District Court
    for the Eastern District of Pennsylvania
    (D.C. Civil Action No. 93-cv-1934)
    _________________
    Argued October 16, 1995
    Before: BECKER, ROTH, Circuit Judges, and
    SHADUR,1 District Judge.
    (Opinion filed December 13, l995)
    _________________
    F. Anthony Mooney, Esquire (Argued)
    F. Anthony Mooney and Associates
    20 Williams Street, Suite 110
    Wellesley, MA 02181
    Attorney for Appellant
    Lisa D. Stern, Esquire (Argued)
    Miller, Turetsky, Rule, McLennan & Stern
    300 Courthouse Plaza
    18 West Airy Street
    Norristown, PA 19401-4717
    Attorney for Appellee
    1
    Milton I. Shadur, United States District Judge for the Northern
    District of Illinois, sitting by designation.
    1
    ______________________
    OPINION OF THE COURT
    ______________________
    SHADUR, District Judge.
    Compass Technology, Inc. ("Compass") appeals the district
    court judgment, following a bench trial, that accepted the
    position of defendant Tseng Laboratories, Inc. ("Tseng") in this
    contract dispute.   Compass contends that the district court erred
    (1) by admitting extrinsic evidence to interpret the contract
    between Compass and Tseng and (2) by refusing to reopen the
    evidence after a key witness had first been located within a few
    days after the close of the 1-1/2 day bench trial.
    Jurisdiction in the district court was invoked on diversity-
    of-citizenship grounds under 
    28 U.S.C. §1332
     (originally-named
    codefendant Wang Laboratories, Inc. ("Wang") was dismissed by the
    district court for lack of jurisdiction).      We have jurisdiction
    over this appeal from the district court's final judgment under
    
    28 U.S.C. §1291
    .
    We hold that under any view of the evidentiary issues the
    district court erred in refusing to hear the newly-located
    witness.   And because that alone requires us to reverse the
    district court's judgment and remand for a new trial, we then
    address the related evidentiary issues as a guide to the handling
    of that second trial.
    Factual Background
    2
    This dispute arises out of a "Manufacturer's Rep Agreement"
    (the "Agreement") entered into between Tseng and Compass
    effective February 19, 1988.   Under the Agreement Compass was to
    serve as the exclusive selling representative for Tseng, a
    manufacturer of computer graphics chips, in six New England
    states.   In return Compass was to receive a commission on the
    Tseng products sold by Compass within the six-state region.
    Tseng's then Director of Sales and Marketing John Ciarlante
    ("Ciarlante") prepared the form of Manufacturer's Rep Agreement
    based on his experience with a previous employer (Tseng not
    having previously used such agreements).   It took the form of a
    standard printed document, with blanks left to be filled in as
    appropriate.   While the Agreement is quite straightforward in
    most respects, its Paragraphs 3 and 4 give rise to the present
    controversy:
    3.   PRODUCTS -- The Representative shall sell the
    "products" of the manufacturer set forth herein which
    may be changed by the Manufacturer upon sixty (60) days
    prior notice, subject further to Addendum #1, attached
    hereto:
    4.    AMOUNT OF COMPENSATION -- Representative's
    compensation for services performed hereunder shall be
    5%2 of the "net invoice price" defined herein below, of
    the Manufacturer's product for which an order is taken
    by Representative. However, when engineering,
    execution of the order, or shipment involve different
    territories the Manufacturer will split the full
    commission among the Representatives whose territories
    are involved. The Manufacturer will make this
    determination and advise the interested Representatives
    at the time the order is submitted to the Manufacturer.
    2
    This typed figure fills in a blank space in the printed form
    Agreement.
    3
    No Addendum #1 is in the record, and that has proved to be
    the focal point of the dispute between the parties.   Even though
    Tseng was unable to produce a copy of any such addendum or to
    provide any witness who could testify to its claimed contents or
    could even recall seeing one, it nonetheless says that there was
    such an animal and that the addendum specified that Compass was
    to receive no commission whatever on any sales of Tseng products
    to Wang.   For its part, Compass claims that no Addendum #1 ever
    existed and that the Agreement is clear that Compass was to
    receive a 5% commission on all sales within its territory,
    including sales to Wang.   What is at stake, if Compass is indeed
    entitled to such a commission on sales to Wang during the time
    that the Agreement was in effect, is an amount close to $200,000
    exclusive of prejudgment interest.
    Like most such catch phrases, the Chinese proverb that "One
    picture is worth ten thousand words" is obviously not intended to
    be taken literally as a universal rule.   In this instance,
    however, the relevant picture is of the words themselves--the
    Agreement's pages showing its standardized form, the placement of
    the blanks and the filling in of the blanks (or perhaps more
    importantly, the failure to fill in the blanks)--and that picture
    is worth a good many words in the context of this case.   We have
    therefore annexed a photocopy of the Agreement's most relevant
    and most illustrative page, its page 1.
    4
    Ciarlante had been Tseng's sole participant in negotiating
    and signing the Agreement on its behalf, while Compass was
    represented by its President Donald Rheault ("Rheault").    At
    trial Rheault testified that he could not recall whether or not
    there was an Addendum #1 attached to the Agreement when he signed
    it.   Because Ciarlante could not be located by either party
    before the trial, Tseng's only witness who spoke to the issue at
    all was John Gibbons, a founder, director and business consultant
    for Tseng, who testified that he had instructed Ciarlante to
    exclude sales to Wang from the Agreement.   But Gibbons admitted
    on cross-examination that he did not actually see the Agreement
    until March 1989--more than a year after it was executed and
    delivered--and that he has never seen any Addendum #1.
    Early in the trial the district court determined as a matter
    of law that the Agreement's reference to the missing Addendum #1
    created an ambiguity (
    1994 WL 446853
    , at *1).   Over Compass'
    objections the district court then allowed testimony about the
    parties' intent as to what commission was to be paid on sales to
    Wang.
    Although the district court's comments during the short
    bench trial had reflected a healthy skepticism as to whether
    there had ever been an Addendum #1 (let alone what its terms were
    if it actually existed), the court ultimately reached the
    following conclusion (id. at *2):
    On the basis of the credible evidence presented by the
    parties the Court finds that Addendum #1 provided that
    Compass would receive no commission on the sale of
    Tseng Products to house accounts and that, at the time
    the Agreement was executed, Tseng's only house account
    5
    was Wang. Compass knew and was aware that no
    commission was to be paid on house accounts and that
    Wang was Tseng's most substantial account and its only
    house account.   Compass knew and was aware of the fact
    that a commission would not be paid on the Wang
    account.
    That holding was based, according to the district court, on three
    strands of evidence presented at trial (id. at *2-3):
    1.   In addition to the stated awareness on Compass' part
    reflected in the last two quoted sentences, Compass was
    also aware that Tseng's previous manufacturer's
    representative had been dismissed for requesting
    commissions on the Wang account.3
    2.   Compass received two small commission statements for
    periods during which substantial sales were made to
    Wang, yet did not question Tseng or complain when those
    statements did not cover those sales to Wang.
    3.   In November 1988 (six months after the contract became
    effective) representatives of Compass and Tseng met to
    discuss a commission for servicing the Wang account and
    agreed that Compass would receive a 1% commission on
    sales to Wang after December 1, 1988.
    Based on those findings the district court included in the total
    damages it awarded to Compass only 1% of the sales to Wang
    3
    Our examination of the record has disclosed no evidence whatever
    to support this finding. As for the other findings by the
    district court, both those quoted above and those summarized in
    the text of this opinion, we make no effort to review either the
    evidence tendered by Tseng or Compass' submission of point-by-
    point evidence to the contrary, matters that we anticipate will
    be re-evaluated by the district court in light of the Ciarlante
    testimony and of what is said in this opinion.
    6
    between December 1, 1988 and May 24, 1989 (that figure came to
    $18,402) plus prejudgment interest (id. at *3).4
    On August 16, 1994--after the trial had ended on August 11
    but before the judge's August 15 decision was docketed and sent
    to the parties on August 18--Compass' efforts to locate
    Ciarlante, launched some months earlier, bore fruit.   Its counsel
    immediately filed a Motion To Stay Issuance of Decision, or
    Vacate Decision, and Re-Open Evidence to Permit the Testimony of
    Previously Missing Witness.5   Then on August 22, after it had
    received the district court's decision, Compass filed a second
    motion--its Motion To Alter or Amend Judgment, or, Alternatively
    for New Trial, or Re-Opening of the Evidence--under Fed.R.Civ.P
    ("Rule") 59(a).   Compass then supported that motion with an
    affidavit from Ciarlante in which he stated what his testimony,
    if it were credited at all, would be if the Court reopened the
    evidence and allowed him to testify.
    Suffice it to say at this point that Ciarlante's testimony,
    if it were credited at all, would have been devastating to
    Tseng's position.   Among other sworn assertions that supported
    Compass' position in its entirety, Ciarlante flatly controverted
    Gibbons' testimony as to any discussions having taken place about
    Wang sales being noncommissionable (or being commissionable at a
    4
    As reflected in the text, December 1, 1988 was the date on which
    the district court found that Tseng agreed to begin paying
    Compass a 1% commission on Wang sales. As for the May 24, 1989
    date, that came from the fact that Tseng notified Compass of the
    Agreement's termination on April 24, 1989, and Agreement ¶9
    called for any such termination to be effective 30 days later.
    5
    Because of a mix-up in filing, that motion was not docketed
    until September 12, 1994.
    7
    reduced rate) and just as flatly negated the existence of the
    mysterious Addendum #1:
    29. It was in this context that the manufacturers
    representative agreement with Compass Technology, Inc.,
    a copy of which is attached hereto as Exhibit C, was
    entered into in February of 1989.
    30. I prepared that contract and I dealt exclusively
    with Mr. Rheault in connection with its execution.
    31. There was never an Addendum #1 attached to the
    contract, nor was it ever intended that there would be
    an Addendum #1 attached to the contract.
    32. It was never the intent on the part of either
    Tseng or Compass that commissions on sales to Wang
    would be excluded from the contract or would be treated
    as subject to a reduced commission.
    33. One of Compass' responsibilities was to salvage
    the Wang account and develop the Wang business. Under
    those circumstances, it would have made no sense for
    Tseng to require that there be no commission paid on
    Wang sales through Compass Technology, Inc. or that
    there be a reduction of any commission earned on those
    sales.
    34. There were never any discussions within Tseng
    Laboratories, Inc. that there would be no commissions
    paid to Compass with respect to Wang sales and I was
    not instructed to include such a provision, or a
    provision calling for reduced commissions, in any
    contract, addendum or other arrangement entered into
    with Compass Technology, Inc. on behalf of Wang.
    35. I was never told that any manufacturers rep
    agreement I entered into on behalf of Tseng would have
    to be approved, initialed or countersigned by anyone,
    including John Gibbons or Jack Tseng.
    36. The form of agreement used in connection with the
    Compass Technology, Inc. contract was one I used while
    employed at Princeton Graphics and that form of
    agreement provided for an Addendum #1, which was
    occasionally used by Princeton Graphics to exclude
    certain products, not to list house accounts.
    8
    37. I have never seen an Addendum #1 in connection
    with the Compass agreement or any other manufacturers
    rep agreement entered into during my tenure at Tseng.
    38. I was present at the breakfast meeting which took place
    on November 2, 1988 at which John Gibbons and Donald Rheault
    were present.
    39. I did not meet with Donald Rheault the night before
    that meeting to advise him that Compass Technology, Inc.
    would now be receiving a 1% commission on Wang sales, and I
    was not instructed by anyone at Tseng to have any such
    conversation with Mr. Rheault.
    40. Had such an instruction been given to me, I would
    remember it, because it would have been directly contrary to
    the arrangement which Tseng had with Compass Technology,
    Inc. for the payment of a 5% commission on sales in Compass'
    New England territory, and it would have represented a
    drastic change in what had been agreed upon, namely, that
    Compass would receive a full commission on all sales in its
    territory.
    41. There was no conversation at the breakfast meeting on
    November 2 in which Donald Rheault thanked John Gibbons for
    allowing Compass Technology, Inc. a 1% commission. Again, I
    would have a definite recollection of any such comment
    because it would have been inconsistent with what I knew to
    be the arrangement between Compass Technology, Inc. and
    Tseng, namely, that Compass was to receive a 5% commission
    on all sales in its territory, including sales to Wang. The
    breakfast meeting was to discuss protocol and the agenda of
    a meeting scheduled to take place at Wang immediately
    following breakfast.
    On December 20, 1994 the district court denied both of
    Compass' motions, finding that Ciarlante could have been located
    earlier had Compass exercised "reasonable diligence," that
    Ciarlante's testimony about Addendum #1 would be "merely
    cumulative" and that at any rate his testimony would not change
    the outcome (
    1994 WL 719616
    ).   That decision tied up the last
    loose ends before the district court and set the stage for this
    appeal.
    9
    Refusal To Reopen Judgment
    We begin where the factual account has just ended--with the
    district court's rejection of Compass' motion, brought under this
    portion of Rule 59(a):
    A new trial may be granted to all or any of the parties
    and on all or part of the issues . . . in an action
    tried without a jury, for any of the reasons for which
    rehearings have heretofore been granted in suits in
    equity in the courts of the United States.
    Although that provision does not in terms speak of such relief
    being based on new evidence, Rule 60(b)(2) provides that "newly
    discovered evidence which by due diligence could not have been
    discovered in time to move for a new trial" can give rise to
    relief from a judgment or order.   Rule 59 and Rule 60(b)(2) share
    the same standard for granting relief on the basis of newly
    discovered evidence (11 Charles Wright, Arthur Miller and Mary
    Kay Kane, Federal Practice and Procedure:    Civil 2d § 2808, at 86
    (2d ed. 1995).
    That standard requires that the new evidence (1) be material
    and not merely cumulative, (2) could not have been discovered
    before trial through the exercise of reasonable diligence and (3)
    would probably have changed the outcome of the trial (Bohus v.
    Beloff, 
    950 F.2d 919
    , 930 (3d Cir. 1991)).   Any party requesting
    such relief "bears a heavy burden" (id., quoting Pilsco v. Union
    R. Co., 
    379 F.2d 15
    , 17 (3d Cir. 1967)).    Though we consequently
    review a district court's decision in that respect for an abuse
    of discretion (cf. Olefins Trading, Inc. v. Han Yang Chem Corp.,
    
    9 F.3d 282
    , 290 (3d Cir. 1993), dealing with the other side of
    10
    the coin--the erroneous admission of evidence), in this instance
    we hold that the district court did indeed abuse its discretion
    by refusing to reopen the evidence to allow Ciarlante to testify.
    First, the district court held that Compass could have
    located Ciarlante had it exercised "reasonable diligence."    But
    that determination gives insufficient credence to the affidavit
    of Compass' counsel F. Anthony Mooney ("Mooney") that accompanied
    its motion.   Mooney there chronicled Compass' continuing efforts
    to locate Ciarlante, which began as soon as Mooney learned
    through discovery in the case about the vital position of
    Ciarlante as Tseng's only participant in the negotiations with
    Compass that resulted in the Agreement (as well as Ciarlante's
    having been Tseng's signatory to the Agreement).
    Indeed, it is plain that both sides were searching for
    Ciarlante as a possible witness:   When Tseng's counsel was asked
    by the district court about his whereabouts, she replied, "Heaven
    only knows.   Neither party has found him."   Based on Compass'
    counsel's pursuit of several possible avenues to trace
    Ciarlante's whereabouts, on counsel's ultimate success in
    locating him through the lawyer who represented Ciarlante in his
    lawsuit against Tseng (with whom Ciarlante had a falling out),
    and on counsel's immediate request to the district court to
    reopen proofs (before counsel knew that the judge had issued his
    written ruling a day earlier), it must be concluded that Compass
    made the appropriate showing of diligence.6
    6
    One matter that the district judge mentioned in ruling otherwise
    was that Compass had twice (on July 27 and August 5, 1994)
    11
    More critically for Rule 59 purposes, the district court's
    characterization of Ciarlante's proposed testimony as "merely
    cumulative" is unacceptable.    That surprising label was ascribed
    to Ciarlante's affidavit because Rheault had testified that there
    was no Addendum #1 that excluded products sold to Wang.    But it
    is plainly different in both degree and kind to have such
    testimony emanating from the sole representative of Tseng in the
    negotiation and signing of the Agreement.     Moreover, Ciarlante's
    affidavit expressly contradicts the testimony of Tseng's witness
    (Gibbons), who had said that such an exclusion of Wang sales had
    been intended, and other previously-quoted portions of the
    affidavit (its Paragraphs 38-41) are also wholly at odds with
    Gibbons' testimony as to the asserted post-contract negotiation
    of a lower commission rate on Wang sales.
    We do not of course rule on which witness or witnesses are
    ultimately to be credited--that is a matter for the district
    court to decide on remand.     But the point at this stage of the
    proceedings is that if Ciarlante's testimony were to be believed
    in any material respect, it could not fairly be viewed as "merely
    cumulative."   One thing should be added in that regard,
    occasioned by the district court's comment (just after another
    use of the term "merely cumulative") that Tseng would challenge
    Ciarlante's credibility because he had been terminated by Tseng
    opposed Tseng's requests to continue the trial date because
    Tseng's key witness was scheduled to be out of the country.
    Whatever else might be said on that score, of course it would be
    inappropriate to turn down Compass' motion as some sort of
    penalty for its not having consented to Tseng's request for a
    continuance.
    12
    and had later sued it for wrongful discharge.   Just as this court
    does not make credibility determinations as to witnesses whom we
    have not seen and heard (else we might review district court
    credibility findings de novo, rather than according them the
    respect that we do), so it would be improper for the district
    court to consider discrediting Ciarlante sight unseen.
    Lastly in Rule 59(a) terms, the district court ruled that
    Ciarlante's testimony would not change the outcome of the trial.
    But that is closely linked to the point we have just made.     At a
    minimum such a determination cannot be made without the prior--
    and impermissible--determination that Ciarlante would be
    disbelieved without ever seeing and hearing him testify.   Indeed,
    even on that premise it cannot safely be said that the prior
    trial outcome should stand in any event--and that is so for other
    reasons to be discussed in the next section.
    Our conclusion is additionally fortified by the posture of
    the case before the district court.   What we have said would call
    for the granting even of a conventional Rule 59(a) (or Rule
    60(b)(2)) motion for a new trial.   But that result obtains a
    fortiori where what had taken place here was a short bench trial,
    with the district court facing only the need to reassemble
    counsel (and their clients, if they desired) to hear Ciarlante
    out through direct and cross-examination, and with no need to
    recall the other witnesses to testify anew (except perhaps to
    amplify their testimony in light of Ciarlante's)--let alone any
    need to reconvene with a new jury for a full-blown rerun, as a
    new trial most often requires.
    13
    In sum, a new trial must be ordered because of the district
    court's erroneous ruling on Compass' Rule 59(a) motion.     That
    conclusion logically leads to a brief discussion of some of the
    evidentiary ground rules for that new trial, as called into
    question by this appeal.
    Evidence and Burden of Proof
    Both before the district court and before us, the litigants
    have focused their principal fire on issues of parol evidence:
    whether under Pennsylvania law (which is specified by Agreement
    ¶12 to provide the rules of decision, a designation that both
    parties to this diversity-of-citizenship action have honored) it
    is proper to resort to matters outside of the Agreement itself
    that assertedly bear on the intent of the contracting parties.
    Analysis demonstrates that another aspect of Pennsylvania law
    calls for those issues to be scrutinized in conjunction with
    considering what constitutes the appropriate level of proof on
    the evidentiary issues.
    It is of course familiar and noncontroversial doctrine that
    the fundamental object in interpreting a contract is to ascertain
    the intent of the parties (Z&L Lumber Co. of Atlasburg v.
    Nordquist, 
    348 Pa. Super. 580
    , 585, 
    502 A.2d 697
    , 699 (1985). And
    if their intent can be cleanly extracted from the clear and
    unambiguous words that the parties have used, it is equally
    conventional wisdom that they are held to those words contained
    in the contract (Mellon Bank, N.A. v. Aetna Business Credit, 
    619 F.2d 1001
    , 1013 (3d Cir. 1980)).   Those clear waters become
    murkier when an issue is raised as to a lack of clarity or a
    14
    claimed ambiguity in the contractual language--in that event the
    court "should hear the evidence presented by both parties and
    then decide whether ``there is objective indicia that, from the
    linguistic reference point of the parties, the terms of the
    contract are susceptible of different meanings'" (Z&L Lumber, 348
    Pa. Super. at 586, 502 A.D. at 700, quoting Mellon Bank, 
    619 F.2d at 1011
    ).   In doing so the court must consider the words of the
    contract, the alternative meaning proffered by the challenging
    party, and the nature of the evidence that party could provide
    (Mellon Bank, 
    619 F.2d at 1011
    ).   It is up to the party claiming
    that an ambiguity exists to show that a contract (Metzger v.
    Clifford Realty Corp., 
    327 Pa. Super. 377
    , 388, 
    476 A.2d 1
    (1984):
    is reasonably or fairly susceptible of different
    constructions and is capable of being understood in
    more senses than one and is obscure in meaning through
    indefiniteness of expression or has a double meaning.
    In this instance, Agreement ¶11 contains the conventional
    integration clause prohibiting resort to other discussions and
    agreements between the parties:
    GENERAL -- This Agreement contains the entire
    understanding of the parties, shall supersede any other
    oral or written agreements, and shall be binding upon
    and inure to the benefit of the parties' successors and
    assigns. It may not be modified in any way without the
    written consent of both parties.
    Nonetheless the Agreement itself poses an obvious question on its
    face:   Does the reference in Paragraph 3 of the standard form
    Agreement to "Addendum #1, attached hereto" match up with an
    actual document, or is it simply a part of that standard form
    15
    that has no real significance (in somewhat the same way that, for
    example, a printed standard form of real estate contract may
    often contain a boilerplate reference "See also rider(s)
    attached" whether or not a particular contract has any riders at
    all)?   And that basic question subsumes a whole set of such
    subsidiary questions as:
    Is it likely that if an Addendum #1--containing a special
    provision as to Tseng's single largest account
    (Wang)--had in fact existed and had been
    "attached," neither contracting party would have
    anywhere in its possession any Agreement other than
    the version that was wholly lacking in any Addendum
    #1 or any other attachment?
    Is it likely that if an Addendum #1 had in fact existed, it
    would have contained a provision dealing, not
    with some exception to Tseng's "products" that were
    to be sold by Compass ("products" are, after all,
    the subject to which the reference to any such
    addendum in Agreement ¶3 relates), but rather with
    a claimed exception to the totality of Tseng's
    customers to whom commissionable sales were to be
    made?
    In the same respect, is it likely that if an Addendum #1 had
    in fact existed, no further explanatory
    reference to the subject matter of that addendum
    would have been inserted in the space following the
    16
    colon in Agreement #3, rather than the parties
    having left that space totally blank?
    As a variant on those last two questions, is it likely
    that if an Addendum #1 had in fact existed, and
    had dealt with an exception to the flat 5%
    commission rate prescribed in Agreement ¶4, no
    exception to that rate (or at least no cross-
    reference to Addendum #1) would have been referred
    to in the Agreement's blank space that immediately
    followed that printed Agreement ¶4?
    There may be other questions that bear on the issue, and we
    do not suggest the answers to any of them (again that is
    something for the trier of fact)--but clearly all of those
    matters call for the district court to do more than to limit
    itself in terms of the sometime arcane questions of what
    separates "patent" from "latent" ambiguities (see Metzger, 327
    Penn. Super. at 386, 
    476 A.2d at 5
    ) or of what constitutes an
    "internal" as contrasted with an "external" ambiguity.     Certainly
    the potential tyranny of such labels made it appropriate for the
    district court to have considered the testimony of Gibbons as to
    the alleged content of a meeting between the parties that took
    place well after the Agreement was entered into.    And with that
    testimony before the trier of fact, it was just as plainly
    necessary for the district court to consider the testimony of
    Ciarlante that directly challenged Gibbons' statement as to the
    holding of any meeting having the content to which Gibbons
    testified.
    17
    But to return to the point of beginning, the central focus
    of the parties' dispute is clearly on the question whether or not
    Addendum #1 truly existed--a question that bears not only on the
    meaning of the Agreement to begin with but also on whether the
    testimony of Gibbons or Ciarlante as to the claimed post-
    Agreement negotiation is to be credited.   Because Tseng bears the
    burden of proving the existence of an ambiguity (under Metzger
    and like cases), and because it hangs its ambiguity argument on
    an addendum that the parties do not agree even exists and that
    Tseng cannot produce, this case bears a substantial resemblance
    to the "lost instrument" issue that arises from time to time in
    contract cases.   And in that context the Pennsylvania courts have
    imposed a stringent standard of proof on the party that seeks to
    rely on a document that it cannot produce.
    Thus the plaintiff in Hacker v. Price, 
    166 Pa. Super. 404
    ,
    407, 
    71 A.2d 851
    , 853 (1950) claimed that a written agreement
    gave him the right to purchase three shares of stock.   Although
    the original Agreement was lost, plaintiff was allowed to
    introduce secondary evidence to show the content of the agreement
    and was ultimately successful in forcing specific performance. In
    affirming that decision, the Pennsylvania Superior Court set out
    the following requirements for recovering on a lost instrument
    (id., citations omitted):
    To recover on an instrument, the original of which has
    been lost, the burden of proving the loss of the
    original and that a diligent, bona fide and thorough
    search was made without success is upon the one
    offering secondary evidence. He is also required to
    prove its former existence, execution, delivery and
    contents. The evidence to sustain these averments must
    18
    be clear and convincing. Whether the party offering
    secondary evidence has met this burden of proof
    successfully is a matter to be determined by the trial
    Court and rests largely in the Court's discretion which
    will not be disturbed on appeal unless there is a
    manifest abuse thereof.
    That "clear and convincing evidence" requirement echoes
    established Pennsylvania doctrine.   See, e.g., Mahoney v.
    Collman, 
    293 Pa. 478
    , 482, 
    143 A. 186
    , 187 (1928) (imposing a
    "very heavy burden" on the party seeking to rely on a lost
    instrument, as well as announcing the "clear and convincing"
    evidentiary standard); In re Greggerson's Estate 
    344 Pa. Super. 498
    , 500-01, 
    25 A.2d 711
    , 713 (1942) (following Mahoney).
    We recognize of course that those Pennsylvania cases have
    dealt with the "lost instrument" approach in a somewhat different
    context, applying it to plaintiffs who attempt to recover on such
    a missing document, rather than to a defendant who needs to prove
    such a document to satisfy its burden of establishing an
    ambiguity (in that respect only Haagen v. Patton, 
    193 Pa. Super. 186
    , 190, 
    164 A.2d 33
    , 34-35 (1960) is factually parallel to this
    case, and that opinion had no occasion to discuss the required
    standard of proof).   Accordingly we do not opine on the level of
    proof to be applied by the district court on remand.   Instead we
    leave it to that court to determine in the first instance whether
    the same considerations that have called for the higher "clear
    and convincing" standard of proof in the Pennsylvania "lost
    document" cases apply with like force to the situation involved
    in this case.
    Conclusion
    19
    On remand, then, the district court is required to hear and
    consider the testimony of Ciarlante as to all of the matters
    dealt with in his affidavit.   And in the district court's
    reconsideration of all of the evidence in light of that
    testimony, it should give consideration to whether Tseng's burden
    of proving:
    1.   that Addendum #1 existed;
    2.   that the claimed addendum could not be found after
    a bona fide search; and
    3.   that Addendum #1 excluded sales to Wang from the
    across-the-board 5% commission provision set out in
    Agreement ¶4;
    should be scrutinized through a more demanding "clear and
    convincing evidence" lens.   We reverse and remand the case for
    proceedings consistent with this opinion.
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    20