In Awotin v. Atlas Exchange Bank, 295 U.S. 209, 55 S.Ct. 674, 677, 79 L.Ed. 1393 (1935), the Supreme Court, passing upon an agreement identical with that here involved, executed, however, subsequent to the amendment of February 25, 1927, 2, 44 Stat. 1226, 12 U.S.C.A. 24 note (a proviso which provides that the business of buying and selling investment securities shall be limited to buying and selling without recourse), held that such an agreement was in violation of that section.