American Philatelic Society Stock Certificate, 1923, beautiful lithographed certificate with intertwined APS monogram in center and an ornate border, 12½x9", one share issued to Allen G. Potter; also incl. another Stock Certificate (1928) issued for The Midwestern Philatelic Exhibition Co. (Cleveland, OH), 5 shares to Dr. J.N. Schneider, black and beige obverse, green reverse, each has file folds, very fine and attractive