Palace of Education and Social Economy, 1904 World's Fair

Front:
Samuel Cupples Envelope Co., St. Louis, Mo., World's Fair Stationers, HOLD CARD TO LIGHT. OFFICIAL SOUVENIR WORLD'S FAIR-ST. LOUIS 1904. Palace of Education & Social Economy 137

Back:
Cut out PLACE STAMP HERE. ONE CENT STAMP & MEXICO TWO CENT STAMP FOR ALL OTHER COUNTRIES THIS SIDE FOR THE ADDRESS ONLY