United States, British Commonwealth, and Foreign Stamps, Covers, and Collections

"Trans-Arctic Submarine Expedition" Assortment, includes four covers with the "Ellsworth Trans-Arctic Submarine Expedition 1931" rubber stamp cachet with combination US plus Norway (2) or GB (2) dual franking representing four different legs of the trip - NY to Spitsbergen, London, North Pole or Bergen; also includes three 1931 covers from the expedition offices in NY City with the original enclosures - two being to a collector acknowledging that the expedition will take place (July 1931) and that his submitted covers for the expedition have been posted (Nov 1931), the final cover's enclosure (Apr 1931) gives instructions to collectors and dealers for submitting covers to be carried, F-VFSale 3043: United States Postal History and Flight Covers - Tuesday, June 22, 2021 - 2 p.m. Eastern