This opinion cites 5 cases:

Pittsburgh Terminal Coal Corp. v. Potts ( 1927 )


Youghiogheny-Pittsburgh Coal Co. v. Carlet ( 1927 )


Shappell v. Himelstein ( 1935 )


Williams v. Notopolos ( 1918 )


Testa v. Lally Et Ux. ( 1947 )