3157 EL SALVADOR - GENERAL ISSUES Auction #2317: WORLDWIDE + ARGENTINA: Special May auction Single / Mint O.Gum (LH) Cat.#: VF. Stamp overprinted in 1899, interesting COMPOUND PERFORATION! Starting Price: US$ 10 Current Price: US$ 10 Bid US$ 10 or more Closing: 2023-05-11 22:25:00