Golden Anniversary US Airmail Service 1918-1968

GOLDEN ANNIVERSARY U.S.AIR MAIL GOLDEN ANNIVERSARY OFFICIAL FIRST FIRST FLIGHT FROM WASHINGTON TO NEW-YORK VIA PHILADELPHIA MAY 151918 Art Craft DAY COVER 1918-1968 NEW YORK Golden Anniversary AIR MAIL SERVICE PHILADELPHIA HIN TON 15 1968 DC 50th ANNIVERSARY U.S. AIR MAIL SERVICE 8262 Judson S. Lindsey 431471. Nelson Her. Beoria Dee AIR MAIL 10¢ FIRST DAY OF ISSUE