Bidspirit auction | Worldwide Air Post Stamps and
Worldwide Air Post Stamps and Postal History - United States - 1924 (September 5-28), First Aerial Circumnavigation (Coast to Coast Leg. Atlantic to Pacific) Flight from Boston, MA to Seattle, WA, stationery postcard 1c green, uprated by Franklin 1c green, ''Boston First Landing in US of World Fliers'' machine cancel, all appropriate markings and Seattle ''SEP.28.1924'' arrival ds, VF, Est. $200-$250