#650 - 5¢ Aeronautics Conf. - blue

Showing a typical monoplane of the day, this stamp publicizing the 25th anniversary of manned flight and the International Civil Aeronautics Conference was often mistaken by postmasters as an airmail stamp, causing many letters to be marked postage due. Scott 650 5¢ Aeronautics Conference

Order Pre-cut Mounts 40 x 25 mm