320 ARGENTINE ANTARCTICA - POSTAL HISTORY Auction #2222: WORLDWIDE + ARGENTINA: Special June auction! Cover / Cat.#: F.VF 8/NO/1967 First overflight of a Boeing 707-387 B of Aerolíneas Argentinas in Antarctica, cover with special handstamp and signed by the Commander of the flight, rare, ONLY 20 are known! Starting Price: US$ 100 Current Price: US$ 283 Bid US$ 312 or more Closing: 2022-06-23 22:30:00