Balloon Race Covers incl. First Day and Postcards Lot of 27 balloon racing covers that include: Poland; Jupiter Balloon 100th Anniversary First Day of Issue Air Mail Flight August 17, 1959; more First Day covers from March 31, 1983; several Gordon Bennett Balloon Race covers from a variety of US cities; and two postcards: one from Austria, 1950, the other from the Great American Long Distance Balloon Race in Palm Springs, Calif., 1985. Est. $100-150 (Image)

Est. $100-150