GJ.52, 24c. San Martín, rouletted, on cover sent from Buenos Aires to Paris on 28/SE/1886, VF (Image)

GJ.69 + 70, 1c. on 15c. provisional, groundwork of horiz lines, vermilion and carmine ovpt., unused, without gum, VF (Image)

GJ.83, 3c. Juárez Celman, with fold that affected the gum, MNH, VF quality (Image)

GJ.84 + 85, 5c. Rivadavia, large and small collar, the former of VF quality, the other one with small thin on back. (Image)

GJ.93, 50c. Mitre, light blue and blue, used, VF (Image)

GJ.105 + 108, 5c. Rivadavia type I + 6c. Sarmiento, DOUBLE DIE PROOF formed by a 5c. type I and the frame of 6c., both crossed out, on very thin paper glued to a support paper (only 2 known examples), the lot includes proofs of both stamps printed on card. The multiple die is a great rarity, the paper is very thin and delicate, and it is glued to a support paper to avoid further damage (some minor defects, but excellent appearance) (Image)

GJ.106, 5c. Rivadavia, type II, on fragment with rectangular datestamp of CHACABUCO, VF quality (Image)

GJ.109, 8c. Rivadavia, proof in dark cerise-carmine, block of 4 on cardstock, 2 examples creased (Image)

GJ.116MU, 5P Lamadrid, marginal block of 4 with MUESTRA overprint, VF quality (Image)

GJ.135/6, Discovery of America 400 years, set of 2 values, the 2c. unused without gum, 5c. with original gum, VF (Image)

GJ.141, 5c. Rivadavia, proof in green, on thin paper with gum, VF (Image)

GJ.162, 2P. San Martín, small sun wmk, perf 12¼, with star punch cancel, marginal pair, VF (Image)

GJ.187, 1.20P. San Martín, large sun wmk, perf 11½, VF quality (Image)

GJ.188, 2P. San Martín, large sun wmk, perf 11½, with sheet margin, MNH, superb (Image)

GJ.202, 1P. San Martín, large sun wmk, perf 12¼, with variety: Spot on the background, between the head and "A" of REPUBLICA, MNH (Image)

GJ.226, 12c. Seated Liberty, imperforate, used, rare, VF! (Image)

GJ.260, 2c. Seated Liberty, perf 12¼x11½, used, VF (Image)

GJ.273/4, 5c. Port of Rosario, perf 11½ and 11½x12¼, VF (Image)

GJ.273P, 5c. Port of Rosario, imperforate pair, with light crease between the stamps, of little importance, very nice, low start! (Image)

GJ.286, 30c. San Martín, block of 4, VF (Image)

GJ.289, 2c. San Martín, perf 13¼, dun and chocolate, in blocks of 4, VF (Image)

GJ.296a, 15c. San Martín, block of 4, one with variety: Without "SAN MARTÍN", the top stamps with hinge mark, VF (Image)

GJ.299, 1P. San Martín, unused, without gum, VF (Image)

GJ.309, 24c. Centenary of the 1810 Revolution, proof in green and chestnut, on glazed card, VF quality (Image)

GJ.317b, 5c. Plowman, variety: Without watermark, used, VF (Image)