5 ARGENTINE ANTARCTICA - POSTAL HISTORY Auction #2028: 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: 2020-07-09 22:25:00