Folded cover dated 2/JA/1867, franked by 2 stamps GJ.37 (groundwork of horizontal lines), with ADMON. DE C. DE CORDOBA double-circle cancel, VF! (Image)

Folded cover franked with GJ.38, tied by "21" mailbox cancel and datestamp of BUENOS AIRES - C - 10/JUL/1870 alongside, very nice, rare cancel! (Image)

Folded cover sent to Santiago (del Estero), franked by GJ.38 with scarce pen cancellation of LORETO, and over it an inscription of the addressee indicating date of reply 3/NO/1873, VF and extremely rare! (Image)

GJ.38, franking a cover sent to Buenos Aires on 3/DE/1872, with SAN NICOLÁS datestamp with Maltese cross, VF! (Image)

Folded cover dated 1/OC/1868 to B.Aires, franked by GJ.39, with double-circle ADMON. DE C. DE CORDOBA cancel in blue, excellent quality! (Image)

GJ.40, 1867 15c. San Martín, PROOF in orange-red, pair printed on India paper (very thin), rare! (Image)

GJ.44, 1867 90c. Saavedra, PROOF in the issued color, pair printed on India paper (very thin), VF quality, scarce! (Image)

GJ.45/47, 1877 Provisionals, the cmpl. set of 3 values mint without gum, guaranteed genuine, excellent quality! (Image)

GJ.55, 1877 24c. San Martín, pen cancelled block of 9, VF quality! (Image)

GJ.60b, vertical pair, one with VARIETY "without ½", MNH (+50%, with brown gum applied with brush), superb, extremely rare! (Image)

Cover franked by pair GJ.76, sent from BUENOS AIRES to Concordia on 3/AUG/1884, VF quality, rare! (Image)

GJ.76, with variety: Very shifted overprint, with pen cancel "Certificada", VF! (Image)

GJ.83, 1888 3c. Juarez Celman, pair with DOUBLE vertical perforation, mint original gum, VF! (Image)

GJ.84, 5c. Rivadavia with large collar, franking a cover sent to Buenos Aires in FE/1889, with interesting CORDOVA datestamp, and arrival backstamps, very attractive! (Image)

GJ.84, block of 4 with DOUBLE horizontal perforation, some minor faults on back, very good front! (Image)

GJ.84, 5c. Rivadavia with large collar, with variety: DOUBLE vertical perforation, excellent quality! (Image)

GJ.86, 1888 6c. Sarmiento, block of 10 + vertical pair showing a complete double report (each one of the 6 types of the report are present twice: 3-1-2-3-1-2- / 6-4-5-6-4-5, 4 examples are lightly hinged and 8 MNH (+100%), excellent quality, catalog value US$900 (Image)

GJ.86PH, 1888 6c. Sarmiento, block of 6, containing at top a block of 4 IMPERFORATE BETWEEN horizontally, VF quality, rare! (Image)

GJ.97, ½c. Urquiza, franking ALONE a printed circular used in Buenos Aires on 25/AP/1891, rare, VF quality! (Image)

GJ.97AP, 1889 ½c. Urquiza in gray-blue, IMPERFORATE block of 4, mint very lightly hinged, excellent quality! (Image)

GJ.98APH, 1c. Vélez Sársfield WORN PLATE (with frame line and groundwork of horizontal lines), vertical pair IMPERFORATE BETWEEN, variety not yet catalogued, VF and rare! (Image)

GJ.99, 1889 1c. Velez Sarfield with "Globes" watermark covering almost all the stamp, used, excellent quality, rare in such fine condition and with so notable watermark! (Image)

GJ.98P, 5c. Rivadavia (large head), IMPERFORATE PAIR, VF! (Image)

GJ.110P, 1889 10c. Avellaneda, light dun, IMPERFORATE PAIR, MNH (+50%), superb! (Image)

GJ.113P, 1889 50c. Mitre, IMPERFORATE PAIR, MNH (+50%), superb! (Image)