GJ.17, 1P. very dark blue, mint, with "A RES" variety, VF! (Image)

GJ.18, 2P. red, semi-clear impression, mint with part original gum, very good example! (Image)

GJ.21, 1862 1P. rose, mint, superb example! (Image)

GJ.1, Un Real M.C. type 1, with pen cancel of Saladas, very fine quality! (Image)

GJ.1, Un Real M.C., type 4, used on fragment with attractive pen cancel, excellent quality! (Image)

GJ.1c + 1, Un Real M.C., pair combining stamp with OILY IMPRESSION + normal example (types 5 + 6), with pen cancels of Goya, excellent quality, rare! (Image)

Entire letter sent from RESTAURACIÓN to Goya on 27/JA/1862, franked by GJ.3 (light blue) type 7, with characteristic pen cancel of origin. Entire letters with verifiable date and origin are scarce, very fine quality, signed by Alberto Solari (Image)

Entire letter sent from SAN ANTONIO to Goya on 29/AP/1862, franked by GJ.3 (light blue) type 2, with characteristic pen cancel of origin. Entire letters with verifiable date and origin are scarce, very fine quality, signed by Alberto Solari (Image)

Entire letter sent from ESQUINA to Goya on 10/NO/1862, franked by GJ.3 (light blue) type 3, with characteristic pen cancel of origin. Entire letters with verifiable date and origin are scarce, very fine quality, signed by Alberto Solari (Image)

GJ.3, blue, type 6, very attractive stamp with partially incomplete impression, on fragment, excellent! (Image)

GJ.4, yellow-green, type 1, mint, very fine quality! (Image)

GJ.4, yellow-green, type 4, excellent stamp with beautiful pen cancel! (Image)

GJ.6, yello, type 2, used with "CORRIENTES" in large arch, excellent and rare! (Image)

Entire letter sent from YAGUARETÉ CORÁ to Goya on 29/MAY/1867, franked by GJ.6 (yellow) type 2, with characteristic pen cancel of origin. The text is very interesting (they wished they could see "soon Gral. Mitre and Gral. Paunero in the war... to face up to the tyrant Lopez..."), also about a sale of cattle with good profit. Entire letters with verifiable date and origin are scarce, very fine quality, signed by Alberto Solari (Image)

GJ.7, dark blue, type 5, with DOUBLE cancellation: pen (2 semi-diagonal lines) + mute cancel (9-bar of Corrientes, possibly applied because the pen cancel was not noticeable due to the dark paper), excellent quality! (Image)

GJ.8, dull rose, type 8, with very unusual "CERT(ificada)" pen cancel, very fine quality! (Image)

GJ.8A, rose-lilac, beautiful TETE-BECHE pair with types 6 + 1, excellent quality, very rare! (Image)

GJ.11, rose, type 2, beautiful used example, VF! (Image)

GJ.13, redish lilac, type 5, with rare pen cancel, superb quality! (Image)

GJ.16, spectacular pair with types 1 and 2, in attractive lilac-rose, with double circle datestamp of Corrientes, VF! (Image)

GJ.8, 10c. green, fantastic example, immense margins, used in Tucumán, very nice color, very fresh, perfect! (Image)

GJ.14, 5c. very worn impression, large margins, on fragment with Rosario cancel of 15/NO/1863, excellent! (Image)

GJ.49, 8c. Rivadavia, rouletted, franking a cover sent from Buenos Aires to San Juan on 10/JUL/1877, with "BUENOS AIRES C" datestamp, along another datestamp without letter of 12/JUL and numeral "10" in circle, VF! (Image)

GJ.136, 1892 5c. Discovery of America 400 years, extremely rare die proof printed on card, large size (225 x 300 mm) without decree, the stamp in dark green, extremely rare and unknown to Kneitschel! (Image)

GJ.136, 1892 5c. Discovery of America 400 years, extremely rare die proof printed on card, large size (225 x 300 mm) without decree, the stamp in dark chestnut, extremely rare and unknown to Kneitschel! (Image)