GJ.10/29 (without 17 and 20, and the 1c. Little Envelope perf 12½ has inverted overprint), 1884 almost complete set with black overprint, almost all with original gum, in general of very fine quality, rare, catalog value US$454 (Image)

GJ.10a, ½c. Little Envelope with INVERTED overprint, superb block of 4, rare in this condition! (Image)

GJ.15, 4c. Moreno, fantastic marginal block of 4 with printer imprint, well cancelled on the center, superb, possibly unique in such fine condition! (Image)

GJ.19, 12c. Little Envelope perf 12, MNH block of 4, superb! (Image)

GJ.23, 20c. Velez Sársfield, block of 4 excellent quality, rare! (Image)

GJ.24, San Martín 24c. rouletted, block of 4 with OFFSET impression of the overprint on back of 3 stamps, VF, spectacular! (Image)

GJ.25, 24c. San Martín perforated, block of 4, 2 with PRINTER IMPRINT (American Bank Note Co.) in the border, VF! (Image)

GJ.25b, 24c. San Martín perforated with INVERTED overprint, MNH block of 8, superb! (Image)

GJ.26, 25c. Alvear with DRAMATICALY SHIFTED overprint, fantastic, VF quality! (Image)

GJ.29a, 90c. Saavedra with INVERTED OVERPRINT var., superb, very rare! (Image)

GJ.30/34, 1884 cmpl. set of 5 values with red overprint, VF quality, rare, catalog value US$546 (Image)

GJ.33A, 60c. black with carmine-rose overprint, superb block of 4 (2 MNH), rare! (Image)

GJ.50 + other values, old collection of official department stamps in stockbook, mint and of excellent quality, it includes many stamps of high catalog value (after a quick view I found several examples with catalog values of US$30, 35, 40 and up to US$50!), very high retail value, great opportunity for stamp dealers and for collectors who wish to start this interesting chapter of Argentine philately! (Image)

GJ.138, 1915 1c. Plowman, unwatermarked French paper, mint, VF and rare! (Image)

GJ.456, 1915 5c. Plowman, Italian paper with vertical honeycomb wmk, perf 13½x12½, rare! (Image)

GJ.479/480, 1922 San Martín, round sun wmk, cmpl. set of 2 values of excellent quality, rare! (Image)

GJ.574, 1911 2c. Plowman with sun watermark, mint, VF and rare! (Image)

GJ.663a, 50c. Petroleum, with INVERTED OVERPRINT, MNH block of 4 (+50%), also offset impression of the ovpt. on back, superb! (Image)

GJ.665c, 1P. Map, corner block of 4, one stamp WITHOUT OVERPRINT, MNH (+50%), superb! (Image)

GJ.677P, 1P. Map with Antarctica, IMPERFORATE BLOCK OF 4 with INVERTED overprint, mint, the bottom pair is MNH (+50%), VF and rare! (Image)

GJ.681c, pair WITH AND WITHOUT OVERPRINT, MNH (+50%), superb, very rare! (Image)

GJ.737a, 1P. Sunflower, block of 4 with DOUBLE OVERPRINT, MNH (+50%), VF quality, rare! (Image)