GJ.38, 2 stamps on fragment with spectacular mute "circle of 8 wedges without center" cancel of Buenos Aires, excellent! (Image)

GJ.38, strip of 3 + pair and single on fragments tied by postmarks of Rosario, excellent quality! (Image)

GJ.38, 3 examples on fragment tied by circular datestamp of GUALEGUAYCHÚ with Maltese cross, very handsome! (Image)

GJ.38, with MAILBOX cancel "17" in circle, VF quality, rare! (Image)

GJ.38, VERY WIDE EXAMPLE (due to perforation variety), with nice mute "wedges" cancel of MENDOZA, excellent! (Image)

GJ.39, on fragment tied by mute "circle of wedges" cancel, VF quality! (Image)

GJ.40, tied on fragment by mute "circle of wedges" cancel of CONCORDIA, excellent! (Image)

GJ.54, with the rare rectangular datestamp of ESTACIÓN PARDO (Buenos Aires), VF quality! (Image)

GJ.60c, "without PROVISORIO" variety, signed by Victor Kneitschel, VF quality! (Image)

GJ.60o, with PROVISOBIO variety, VF quality! (Image)

GJ.71f, INVERTED overprint variety, VF quality! (Image)

GJ.97P, ½c. Urquiza, IMPERFORATE PAIR, excellent quality! (Image)

GJ.110, 1889 10c. Avellaneda, lot with types I, II and III (with soft pearls in the white strips and light line on the forehead, with the pearls but no line, and without pearls). These 3 types are produced by the wear of the printing plate, MNH and of excellent quality, rare group! (Image)

GJ.118, 1889 20P. Brown, PROOF in ultramarine, printed on card, VF quality! (Image)

GJ.143 + other values, 5 blocks of 4 of the set with MUESTRA ovpt., all MNH and of superb quality! (Image)

GJ.144P, spectacular IMPERFORATE PAIR with top sheet margin, tiny hinge mark, excellent! (Image)

GJ.147P, rare IMPERFORATE PAIR, mint, VF quality! (Image)

GJ.162, perforation 12, used, VF, rare! (Image)

GJ.180, 6 examples (total 72c.) franking a registered cover sent from Buenos Aires to England on 4/JUL/1898, excellent quality! (Image)

GJ.300/315, 1910 Centenary of the Revolution, cmpl. set of 16 mint values, gum lightly darkened, average quality, low start! (Image)

GJ.305, 1910 5c. Saavedra IMPERFORATE variety (with watermark), mint without gum, VF and rare! (Image)

GJ.327, 1911 2c. Plowman with sun wmk, MNH, excellent quality, very fresh, catalog value US$20 + 50% (MNH) (Image)

GJ.350, 1912 12c. Plowman, German paper, vertical honeycomb wmk, PERFORATION 13½, MNH without hinge or stain marks, as fresh and impeccable as the day it was printed, superb, catalog value US$60 (considering the MNH surcharge) (Image)

GJ.370, 1915 20c. Plowman printed on Italian paper, vertical honeycomb watermark, perforation 13½x12½, mint, very pretty (gum slightly toned), catalog value US$35. (Image)

GJ.455CI, 1917 San Martín 20P. with CENTER INVERTED variety, mint full original gum and with light hinge mark, signed (initials) by Kneitschel and with guarantee mark of Casa Pardo, superb, rare! (Image)