Commissioner v. Sunnen , 68 S. Ct. 715 ( 1948 )
Robinette v. Helvering , 63 S. Ct. 540 ( 1943 )
Harrison v. Schaffner , 61 S. Ct. 759 ( 1941 )
Estate of Sanford v. Commissioner , 60 S. Ct. 51 ( 1939 )
Blair v. Commissioner , 57 S. Ct. 330 ( 1937 )
Helvering v. Horst , 61 S. Ct. 144 ( 1940 )
Lucas v. Earl , 50 S. Ct. 241 ( 1930 )