Lot 1263
1893 Columbian Exposition - Machinery Building, 1¢ Exposition Set 10 postal card, uprated with 1¢ Columbian and cancelled by "World's Fair Sta., Chicago Ill., Aug 24, 1893" duplex to Frankfurt, Germany, New York transit backstamp; some slight toning and some edge wear, otherwise Very Fine, the earliest reported usage of this card and an extremely rare Exposition cancel card to a foreign destination. USPCC No. EX78.Scott No. UX10 Estimate $400 - 600.