GJ.35A, 1c. Balcarce, gray-violet, block of 10 stamps, mint with full original gum (+100%), VF quality and rare! (Image)

GJ.36, 4c. Moreno, with datestamp of Concepción del Uruguay, VF quality (Image)

GJ.36, 4c. Moreno, unused, without gum, VF (Image)

GJ.37, 5c. Rivadavia, groundwork of horiz lines, on cover sent to San Pedro in JUN/1868, with mute BARRED cancel of B.Aires and datestamp, VF (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, mint original gum, VF quality (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, with diamond 'B' carteria cancel, very nice (Image)

GJ.39, 10c. Belgrano, proof in green (issued color), on thin paper, VF (Image)

GJ.40, 15c. San Martín, groundwork of crossed lines, unused, without gum, VF (Image)

GJ.40, 15c. San Martín, groundwork of crossed lines, unused, without gum, VF (Image)

GJ.42, 30c. Alvear, unused, without gum, VF quality (Image)

GJ.43, 60c. Posadas, the gum with darkened areas (Image)

GJ.44, 90c. Saavedra, with MUESTRA overprint, VF (Image)

GJ.45, 1c. on 5c. provisional, unused, without gum, signed by Kneitschel, VF quality (Image)

GJ.46, 2c. on 5c. provisional, block of 4, very rare, very few known examples with original gum, very fresh, excellent quality! (Image)

GJ.48, 5. Rivadavia, rouletted, original gum with strong hinge mark, VF (Image)

GJ.48, 5c. Rivadavia, rouletted, rare pair, yellowish gum, excellent front, low start! (Image)

GJ.50, 16c. Rivadavia, rouletted, on cover sent from Buenos Aires to Italy, VF (Image)

GJ.51, 20c. Vélez Sarsfield, rouletted, with "MUESTRA" ovpt., unused, without gum, VF (Image)

Cover franked with GJ.52 pair, sent via French mail from Buenos Aires to Paris on 12/MAY/1885, VF (Image)

GJ.55, 24c. San Martín, MUESTRA ovpt., unused without gum, with small thin on back, nice front (Image)

GJ.55, 24c. San Martín, with black (original gum) and red (unused, without gum) "MUESTRA" ovpt., in blocks of 4, VF (Image)

GJ.56, 24c. San Martín, unused block of 4, without gum, VF quality (Image)

GJ.59, ½c. on 5c. provisional, without perforation across the middle of stamps, small P, block of 4 with VARIETY: Overtprint shifted downwards, VF (Image)

GJ.60, ½c. on 5c. provisional, without perforation across the middle, large P, "PROVISORIO)(" variety, very good example! (Image)

GJ.63, 12c. Little Envelope, perf 12½, used, VF (Image)