GJ.38, on fragment with mute 6x5 dotted lozenge cancel of CÓRDOBA, VF and extremely rare! (Image)

GJ.47, 1877 provisional of 8c. franking an entire letter from Rosario to Córdoba on 4/JUL/1877, excellent quality! (Image)

GJ.51, 1876 20c. Vélez Sársfield, pair on tiny fragment, postally used with the rare rectangular datestamp of MORTEROS (Tucumán), VF quality! (Image)

GJ.72a, with variety "½" AT TOP, mint without gum, VF quality! (Image)

GJ.218P, 1899 1c. Liberty, IMPERFORATE PAIR, with tiny thin on back, insignificant, excellent front, rare! (Image)

GJ.477, 1918 1c. San Martín, block of 12 with complete SERRA BOND wmk (along 5 examples), superb, rare! (Image)

GJ.684EH, 1930 Revolución 20c., vertical GUTTER pair! (Image)

GJ.760, 1935/52 1P. Map with borders, PROOF in the issued colors, imperf pair printed on paper for specimens, small crease, rare! (Image)

GJ.876, 1P. Map with Antarctica, block of 4, 2 with LARGE DIAGONAL FOLD, excellent and fantastic! (Image)

GJ.880, 1P. Map with Antarctica printed on national unsurfaced paper, corner block of 8 with variety: Offset impression on back, VF! (Image)

GJ.887, 5c. San Martín typographed, block of 6 with END-OF-ROLL double paper variety, excellent quality! (Image)

GJ.915a, 1944 5c.+20P. San Juan earthquake victims, with DOUBLE IMPRESSION OF BLUE FRAME, MNH, excellent, very scarce! (Image)

GJ.1275P, 1964 Aviator Jorge Newbery, IMPERFORATE BLOCK OF 4, rare, VF quality! (Image)

GJ.1288, 1964 Joaquín V. González, corner block of 12 with A NUMBER OF PAPER FOLDS, some stamps also with partial double impression, MNH, spectacular! (Image)

GJ.1308, block of 16 with VARIETY: very shifted perforation (many with "ARGENTINA" at top!), VF quality! (Image)

GJ.1849N, 1979/82 200P. Flag Memorial, pair printed on UV NEUTRAL PAPER, used on fragment, excellent quality, extremely rare. A few mint examples are known, almost none used. The value of an unused pair is US$600, great opportunity! (Image)

GJ.2084a + 2085a, 1983 Computing & telecommunication systems, the set with gutter with variety FACE VALUE AND INSCRIPTIONS OMITTED, MNH, excellent quality, very rare! (Image)

GJ.3705AEN, 2008 1P. Mbyá basket, pair with DOUBLE GUTTER, excellent and rare! (Image)

GJ.4023CD, 2014 2P. Latin American Integration, block of 4 WITH RIGHT LABELS, excellent and very rare! (Image)

GJ.4155P, 2016 Apple 2$ IMPERFORATE PAIR, very rare, only 20 known (one sheet) (Image)