GJ.135/36, the 2 high values of the set in blocks of 4, on Italian paper with horiz honeycomb wmk, perf 13¼ x 12½, VF (Image)

GJ.150, unwatermarked, perf 13¼ x 12½ (Image)

GJ.240/1, with multiple suns wmk, perf 13¼ x 12½, set without the low value in blocks of 4 (Image)

GJ.277, block of 4 + single (Image)

GJ.300, with SERRA BOND wmk, perf 13¼ (Image)

GJ.355, block of 4 on Italian paper with vertical honeycomb wmk, perf 13¼ x 12½, 2 hinged and 2 MNH (Image)

GJ.384 x12 + 378 x28, rare block of 40 stamps with sheet corner, 12 of them with WHETLEY BOND wmk, a few with light stain spots, most MNH! (Image)

GJ.395, with round sun wmk (Image)

GJ.443, $1 Map with borders, block of 4. (Image)

GJ.494, block of 4, the top stamps "M broken" variety, catalog value for a normal block is US$17.60 (Image)

GJ.507, 3c. San Martín in pair, both with varieties: one with "M..M" and the other one with "M,M.", interesting! (Image)

GJ.571, block of 4, VF quality! (Image)

GJ.638/9, 15c., blocks of 4 in blue + ultramarine (Image)

GJ.643, block of 4, one with VARIETY: Bottom left corner partially missing (Image)

GJ.657, block of 6 with sheet margin numbered "2" (Image)

GJ.685/702, cmpl. set, one value used, one with light staining, most of fine quality, the high value lightly hinged and with very fresh gum (Image)

GJ.715P, imperforate block of 4, light creases, VF front (Image)

GJ.765 + other, 3 high values of the set, VF quality (Image)

Lot of 29 stamps of $50 San Martín, some with light defects on gum, catalog value US$350+, there are different papers, low start (Image)

Lot of more than 120 mint stamps of fine to VF quality, very little duplication (Image)