59 ARGENTINA - RIVADAVIAS Auction #2033: ARGENTINA: Special August sale! Single / Used Cat.#: GJ.21b VF. GJ.21b, 10c. clear impression, dark green, THIN PAPER (90 microns), superb and rare! Starting Price: US$ 75 Current Price: US$ 75 Bid US$ 75 or more Closing: 2020-08-13 22:05:00