VINTAGE Postcard of AMERICAN AIRLINES, MERCURY OPERATED DC-7 AIRPLANE. Condition: GOOD - - SOME WEAR ON THE CORNERS AND EDGES -SLIGHT CREASE IN UPPER RIGHT CORNER. SEE SCAN. Postmark: ST. LOUIS, MO. 1953. PLEASESEEOUR OTHER POSTCARDS IN OUR eCRATER STORE. SHIPPING DISCOUNT IF YOU PURCHASE MULTIPLE ITEMS.Powered by eCRATER . List your items fast and easy and manage your active items.