Auction # 2136 ARGENTINA: Selection of good pieces of the Tumarkin collection (part I)

GJ.1644, 1974/6 50P. Valle de la Luna, stamp printed on FF paper (very scarce) + 3 singles and a block of 4 printed on FN paper, all from different printings (notable range in the shades) and the block in very dark colors (rare), all MNH and of excellent quality!