5 ARGENTINE ANTARCTICA - POSTAL HISTORY Auction #2112: ARGENTINA: Auction with interesting lots at budget prices! Cover / Cat.#: Fine Cover with postmark of Gral. San Martin Antarctic Base for 20/AP/1957, VF! Starting Price: US$ 5 Current Price: US$ 5 Bid US$ 5 or more Closing: 2021-04-15 22:15:00