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)

GJ.71a, with VARIETY: "½" at top (Image)

GJ.72, VARIETY: shifted overprint (Image)

GJ.73, with VARIETY: VERY shifted overprint (Image)

GJ.80, block of 4, VF (Image)

GJ.83A, dark blue-green (Image)

GJ.85, block of 4, with cancel of "ENCARGADO 1er DISTRITO - TELEGRÁFICO POSTAL", VF (Image)

GJ.88, 15c. San Martín, defective gum, low start (Image)

GJ.94, 6c. Sarmiento, perf 12 (Image)

GJ.95 + 95A, 40c. GREENISH BLACK (scarce), along example in slate color (Image)

GJ.96, corner block of 10 with Expedición cancel of 22/AU/1891 (Image)

GJ.97 + 97A, blocks of 4 in ultramarine + gray-blue (Image)

GJ.98A, worn plate (with frame and groundwork of horizontal lines) (Image)

GJ.99, with GLOBES watermark that can be seen in almost all the stamp, very lightly hinged (appears to be MNH), superb (Image)

GJ.102, 2 blocks of 4 in different shades (Image)

GJ.106, block of 4, VF quality (Image)

GJ.108, MNH block of 4 (Image)

GJ.109, block of 4 with sheet margin and printer imprint, excellent quality (Image)

GJ.110, block of 12 with Expedición cancel of 21/JA/1891, VF (Image)