Front: 6280 OLD BLOCK HOUSE, PITTSBURGH, PA. COPR. DETROIT PHOTOGRAPHIC CO. Back: MADE ONLY BY DETROIT PUBLISHING CO. "PHOSTINT" CARD. TRADE MARK REG. U. S. PAT. OFF. 400⁰ @ 422 THIS SPACE MAY BE USED FOR MESSAGE. AND CANADA. FOREIGN. TWO CENTS
