GJ.845SG, printed ON GUM, the rarest variety of the set!, signed by Victor Kneitschel on back (Image)

GJ.864, sheet margin, with VARIETY: "REPUBLICA ARGENTINA" below due to shifted perforation (Image)

GJ.1254, block of 4, one with VARIETY: "E" of ARGENTINA with small spot, VF (Image)

GJ.1434, Stylized airplane, pair, one with VARIETIES: tail of the plane broken + "R" of REPUBLICA incomplete (Image)

GJ.9, 4 rs. chestnut, with repaired defect, very fine appearance (Image)

GJ.10, IN Ps yellowish dun, ponchito cancel, with defects, good opportunity (Image)

GJ.11, IN Ps blue, ponchito cancel, 3 good margins, signed by Victor Kneitschel on back (Image)

GJ.17, 3 stamps of 1P. in different shades, all with faults (Image)

GJ.17, 1P. blue, with top sheet margin and ponchito cancel, low start (Image)

GJ.21, 1P. rose, used in B.Aires, ample margins, with a small thin in the hinge area, but superb front! (Image)

GJ.1/3, small figures, complete set of VF quality (Image)

GJ.1, 5c. small figures, on fragment, with FORGED cancel of Córdoba in semi-circle, perfect piece to study (Image)

GJ.3, 15c. small figures, small thin in the hinge area (Image)

GJ.5, 10c. large figures, type XV, with VARIETY dot at top-right of the "0" of 10, pin hole (Image)

GJ.6, 15c. large figures, high value of the set (Image)

GJ.7, 5c. with accent, rose, sheet margin, with original gum (+50%), VF quality (Image)

GJ.8, 10c. with accent, yellow-green, with datestamp of Rosario in blue of 5/JA/1864 perfectly applied, light thin on back, superb front (Image)

GJ.10, 5c. without accent, rose, on fragment, complete Catamarca double ellipse (+100%), with a horizonal crease else VF (Image)

GJ.35, with blue cancel of TAPALQUÉ for 10/MAY/1877, blunt corner (Image)

GJ.40, 15c. San Martín, excellent copy with original gum, tiny hinge mark, absolutely superb (Image)

GJ.45a, INVERTED overprint, with certificate of Alberto Solari, extremely rare and of VF quality (Image)

GJ.53A, 2c. Vicente López (Image)

GJ.57, with printer imprint below, VF (Image)

GJ.57e, with VARIETY: double perforation across the middle, hinged (Image)

GJ.67, ½c on 15c., black overprint, with printer imprint, VF (Image)