11c Air Mail Coil Stamp Series of 1971

FIRST DAY OF ISSUE POSTMASTER GENERAL FRANK HITCHCOCK HANDS EARLE L. OVINGTON THE FIRST U.S. AERIAL MAIL SEPT 25, 1911 AT NASSAU, LONG ISLAND, N.Y. GARDEN Art Croft AEROPLANE STATION CREED CITY ESTATES, 11¢ AIR MAIL COIL STAMP SERIES OF 1971 SOKANE 1971 US Judson 5. Lindsey 4314 71. Nelson De Reoria, sel AIR MAIL 11¢ FIRST DAY OF ISSUE