GJ.35, 1867 1c. Balcarce, with rectangular datestamp of SAN MIGUEL (Corrientes) reconstructed, excellent quality, rare! (Image)

GJ.35, 1867 1c. Balcarce, with double circle datestamp of SAN ESTACION ALTAMIRANO (reconstructed) without date, excellent quality, rare! (Image)

GJ.35, 1867 1c. Balcarce, with rectangular datestamp of MAGDALENA (B.Aires) reconstructed, excellent quality, rare! (Image)

GJ.35A, with rectangular datestamp of VECINO (Buenos Aires), excellent quality, reference piece! (Image)

GJ.35A, 1867 1c. Balcarce, pair with DOUBLE cancellation: B.Aires datestamp + double circle BARCELONA datestamp (reconstructed), excellent quality, rare and probably unique! (Image)

GJ.36A, 1867 4c. Moreno in the very notable and rare REDISH CHESTNUT color, fantastic mint corner BLOCK OF 4 (without gum), one of 2 or 3 known examples, great rarity and the most beautiful in existence! (Image)

GJ.37, 1867/73 5c. Rivadavia with groundwork of HORIZONTAL lines, mint without gum, VF, rare in unused, with signature (abbreviated) of Victor Kneitsche on back! (Image)

GJ.37, 1867/73 5c. Rivadavia, extremely rare postally used block of 4 (one of the 2 known examples!!), cancelled in the center "ESTAFETA DE MERCEDES - S.L.", excellent quality, a great post-classic rarity. With Alberto Solari certificate (Image)

GJ.41, 15c. San Martín, groundwork of horizontal lines, mint no gum, well centered, very fine piece, very rare! (Image)

GJ.43, 1867/73 60c. Posadas, mint original gum, VF and rare in this quality! (Image)

GJ.44, 1867/73 90c. Saavedra, mint original gum, VF and rare in this quality! (Image)

GJ.46, 1877 2c. on 5c., mint with large part original gum, excellent quality! (Image)

GJ.49/52, 1876/8 8c. to 24c. rouletted, mint original gum, excellent quality, superb! (Image)

GJ.54, 1877 8c. Rivadavia type I (with double line on the frame), BLOCK OF 4 mint without gum, VF and rare! (Image)

GJ.57, small P, marginal block of 6, excellent quality (5 stamps MNH, one with hinge), very nice! (Image)

GJ.60, 1882 ½c. provisional with large P, block of 12 with the OVERPRINT SHIFTED to the right (several stamps WITHOUT right parenthesis), MNH, VF quality! (Image)

GJ.71, pair with VARIETY: Very shifted overprint, the date is: "4 188", the bottom stamp is MNH, excellent! (Image)

GJ.73, 1883 ½c. on 15c., beautiful mint block of 4 (2 stamps MNH, +50%) with printer imprint in top border, excellent quality! (Image)

GJ.74, with VERY SHIFTED OVERPRINT, fantastic! (Image)

GJ.84, 2 used stamps with VARIETY: taller or wider, including part of the printer imprint in one of their borders, VF quality! (Image)

GJ.84, 1888 5c. Rivadavia (large collar), pair with DOUBLE VERTICAL PERFORATION, very fine quality, rare! (Image)

GJ.86PH, 1888 Sarmiento 6c., vertical pair IMPERFORATE BETWEEN, VF quality, rare! (Image)

GJ.88, 1888 15c. San Martín, mint block of 4 of excellent quality, the bottom stamps are MNH (+100%), very fresh and attractive! (Image)

EXTREMELY RARE VARIETY: GJ.89, 1888 20c. Roca IMPERFORATE, used and with huge margins that leave no doubt, very fine quality, unique! (Image)

GJ.91, 1888 30c. Dorrego, 2 examples in chestnut and light chestnut, mint original gum, fine quality! (Image)