Front: 773 Keystone Hotel, Pittsburgh, Pa. ONBANK 7A-H2791 TRIT I FRIER TRITR F I FR KEYS TONE Back: “PITTSBURGH PROMOTES PROGRESS" MINSKY BROS. & Co., PUBLISHING DIVISION, PITTSBURGH, PA. *C.T. ART-COLORTONE” REG.U.S. PAT. OFF. Ranh Gollower (м AN
