Morrissey v. Commissioner , 56 S. Ct. 289 ( 1935 )
Helvering v. Coleman-Gilbert Associates , 56 S. Ct. 285 ( 1935 )
Swanson v. Commissioner , 56 S. Ct. 283 ( 1935 )
Helvering v. Combs , 56 S. Ct. 287 ( 1935 )
Hecht v. Malley , 265 U.S. 144 ( 1924 )