Interesting ESSAY? of 1912, very attractive! (Image)

Imperforate set of 9 values, paper with watermark, mint without gum, VF! (Image)

Sc.6, 1874 3c., 8 used examples (4 with perf 13, Sc.17), varied colors, papers and cancels, very interesting lot for the specialist! (Image)

GJ.39, 1867 10c. Belgrano, 4 different TRIAL COLOR PROOFS printed on thin paper, VF quality! (Image)

GJ.42, 1867 30c. Alvear, PROOF in the issued color printed on thin paper, VF quality! (Image)

GJ.44, 1867 90c. Saavedra, DIE PROOF in the issued color, printed on thin paper glued to card, VF quality, rare! (Image)

GJ.45, 1877 provisional of 1c. on 5c., beautiful block of 4 mint without gum, very fine quality! (Image)

GJ.56, 1877 25c. Alvear, mint block of 4 with MUESTRA ovpt, VF quality! (Image)

GJ.80, IMPERFORATE vertical pair, mint without gum, one with minor fault, rare! (Image)

GJ.89, 1888 20c. Roca, block of 20 with bulk mail cancels, very fine quality! Some separated perfs are reinforced with hinge (Image)

GJ.101, Strip of 5 franking a cover sent from BARADERO to Rosario on 30/AU/1892, with interesting cancels, rare! (Image)

GJ.110, 1889 10c. Avellaneda, blocks of 4 of 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 blocks of excellent quality, rare group! (Image)

GJ.180, with notable BLUISH PAPER variety (printed with large excess ink that even dyed the paper!), franking a cover sent from Buenos Aires to Germany, spectacular and rare! (Image)

GJ.257, Liberty 1P. perforation 12, used, VF! (Image)

GJ.304a, 1910 4c. with variety: DOUBLE impression of the frame (it can be clearly observed in the inscription "FUERTE Y CASA DE..."), very fine quality, low start! (Image)

GJ.336b, 1911 50c. Plowman with straight rays wmk, PAIR WITH AND WITHOUT WATERMARK, VF quality, rare! (Image)

GJ.361, 1912 Plowman 10P. franking a PO box payment card of year 1916, excellent quality, rare! (Image)

GJ.362, 1912 Plowman 20P. franking a PO box payment card of year 1913, excellent quality, rare! (Image)

GJ.458CZ, 1c. San Martín without watermark, WITH LEFT LABEL, excellent quality. It will be included in the next edition of the GJ catalog as 458CZ with a value of $50 (Image)

GJ.458, block of 4 printed on THICK and lightly DIAGONALLY RIBBED PAPER (very rare), also with partial impression of neighboring stamps in the top margin, excellent quality, few known! (Image)

GJ.462, block of 4 with sheet margin at top with partial impression of 2 other stamps, MNH, VF (Image)

GJ.465, 1918 1c. San Martín unwatermarked, perforation 13¼, rare COMPLETE SHEET of 50 stamps, VERTICAL format, unmounted, excellent quality, very rare! (Image)

GJ.494, corner pair, both stamps IMPERFORATE at top, rare! (Image)

GJ.498, pair with DIAGONAL FOLD, VF quality! (Image)

GJ.588, 1923 San Martín 10P. + 2x 1P. (GJ.586), franking a PO box payment card of year 1930, fine quality, rare! (Image)