587 ARGENTINA - GENERAL ISSUES Auction #224: ARGENTINA: small but very attractive auction Block of Four / Mint O.Gum (LH) Cat.#: GJ.1278 VF. GJ.1278, airmail 18P. UPU Congress, block of 4, VF quality Starting Price: US$ 1 Current Price: US$ 1 Bid US$ 1 or more Closing: 2017-05-30 22:50:00