GJ.35 + 35A, 1c. Balcarce, purple (unused, without gum) and violet (original gum), VF (Image)

GJ.36, 4c. Moreno, proof in dun (issued color), on thin paper, VF (Image)

Cover franked with GJ.36 + 50 pair, sent from Buenos Aires to Paris on 24/JN/1882 via French mail, with several transit and arrival marks, VF! (Image)

GJ.37, 5c. Rivadavia, groundwork of horiz lines, altered gum, very rare in unused condition!! (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, VF (Image)

GJ.39, 10c. Belgrano, unused, without gum, VF (Image)

Folded cover franked with GJ.38 + 39, sent from Buenos Aires to Rosario on 6/DE/1872, VF! (Image)

GJ.42, used (Image)

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

GJ.44, 90c. Saavedra, VF quality (Image)

GJ.44, 90c. Saavedra, with "MUESTRA" overprint, block of 4, VF (Image)

GJ.44, 90c. Saavedra, block of 4 postally used, VF quality, very rare, market value US$250 or more (Image)

GJ.48, 5c. Rivadavia, rouletted, used vertical pair, signed by Kneitschel, VF quality, very rare! (Image)

Cover franked with GJ.50, sent via French mail from Buenos Aires to Paris on 23/JUN/1881, with several transit, French paquebot and arrival markings, VF! (Image)

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

GJ.53, 2c. Vicente López, marginal block of 4, VF (Image)

GJ.54B, 8c. Rivadavia, type II, carmine, VF (Image)

GJ.55, 24c. San Martín, hinged (Image)

GJ.56, 25c. Alvear, with "MUESTRA" ovpt., block of 4, hinged and with some stain spots (Image)

GJ.91/3, Little envelope, perf 12½, cmpl. set of 3 values, unused, without gum, VF (Image)

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

GJ.68, ½c. on 15c. provisional, groundwork of horizontal lines, carmine ovpt, mint without gum, VF (Image)

GJ.69, 1c. on 15c. provisional, groundwork of horizontal lines, vermilion ovpt., imperforate at top, without gum, VF (Image)

GJ.74, 1c. on 15c. provisional, groundwork of crossed lines, carmine ovpt., VF (Image)

GJ.74, 1c on 15c. provisional, groundwork of crossed lines, carmine ovpt., VF (Image)