Cover franked by GJ.36 with the rare oval "ADMINISTRACIÓN DE CORREOS DEL PERGAMINO" cancel, and arrival B.Aires backstamp of 24/OCT/76, with little staining but very interesting! (Image)

RARE CANCEL: GJ.38, 2 examples on fragment with complete rococo cancels of MEDINA (Tucumán), excellent quality, very rare! (Image)

VERY RARE CANCEL: GJ.38, 2 examples on fragments with "ESTAFETA DE PILCIAO (CATAMARCA)" cancel with hand-written date and WITHOUT date, very neatly applied, perfect, splendid! (Image)

GJ.38, with spectacular cancel "ESTAFETA AMBULANTE F.C.S. 3" perfectly applied, superb, rare! (Image)

GJ.38, Rivadavia 5c., with the extremely rare semi-mute "H" cancel, used during the occupation of the fortress of HUMAITÁ in Paraguay, during the Paraguay war, between July 1868 and 8 November 1869. With Alberto Solari certificate (Image)

VERY SCARCE CANCEL: GJ.38, pair on fragment with double circle "ESTAFETA DE COPACABANA" cancel in blue, very well applied, excellent quality and very rare! (Image)

VERY RARE POSTAL MARKING: GJ.38, 2 examples on fragment with complete "ESTAFETA DE MEDINAS. T." cancel perfectly applied, excellent quality, very few known! (Image)

RARE CANCELS: GJ.38, fragment with 2 stamps and complete rectangular datestamp of ANDALGALÁ in blue + another fragment with single and double circle ANDALGALÁ cancel without date, excellent quality, rare! (Image)

GJ.38, 1867 5c. Rivadavia with groundwork of crossed lines, handsome block of 4 used postally, with "ESTAFETA DE MERCEDES - S.L." cancel, excellent quality, rare. With Alberto Solari certificate (Image)

Cover franked by GJ.38, with nice green-blue double circle cancel: "ADMON. DE CORREOS - CORDOBA", VF quality! (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, franking a front of folded cover sent to Dolores, with mute "circle of 6 wedges without center" cancel along datestamp with Maltese cross of Buenos Aires 17/MAR/1869, very fine quality! (Image)

GJ.38, on folded cover to Buenos Aires, canceled "ADMON DE CORREOS DE CHASCOMUS" along datestamp of 3/DE/1870, both in greenish blue, very fine quality, rare! (Image)

RARE VARIETY AND CANCEL: GJ.38, 5c. Rivadavia with background of crossed lines, with variety "RIVADAVIA WITH SMALL HUMP" (as if it was the GJ.37), on fragment with double circle cancel of BELEN (CATAMARCA) without date, excellent! We include a normal example used in Rosario for comparison. (Image)

GJ.38 with NOTABLE plate wear (at left of Rivadavia´s neck), extremely rare variety in this issue, on fragment with datestamp of Catamarca (6/MAY/1874) along the very rare rococo cancel of MEDINA almost complete, excellent! (Image)

GJ.40, 1867 15c. Brown, proof in orange, strip of 7 printed on very thin paper (Indian) glued to card, from the book of specimens of the American Bank Note Co., VF and rare! (Image)

Registered cover franked with GJ.52+65, sent from Buenos Aires to France on 7/FE/1884 via "vapor Orenoque", VF quality! (Image)

Cover franked by pair GJ.54, with BUENOS AIRES - EXT double circle cancel, sent to Cádiz via English mail, with SOUTHAMPTON - SHIP LETTER - 1/JU/81 marking, and arrival backstamp, VF! (Image)

GJ.60d, with DOUBLE OVERPRINT variety, also one with offset impression of the ovpt. on back, signed by Victor Kneitschel, VF! (Image)

GJ.60o, with PROVISOBIO variety, mint full original gum, superb example! (Image)

GJ.61a + 61, 1882 ½c. Little Envelope, block of 4, the left stamps with variety "2 without serif", excellent quality! (Image)

Cover (it had printed matter) franked with GJ.64 ALONE, used locally, postmarked BUENOS AIRES - CENTRO NORTE - 18/JU/82, VF, rare! (Image)

GJ.67, beautiful example from bottom of the sheet, with very wide margin and printer imprint, mint original gum, VF quality! (Image)

LARGEST MULTIPLE: GJ.68, 1884 ½c. on 15c. with groundwork of horizontal lines, carmine overprint, large block of 10 stamps, MNH (+50%), with pristine gum as the day it was issued almost 140 years ago! Tiny wrinkle in the corners of 4 examples, of little importance, extremely rare! (Image)

GJ.69, 1c. on 15c., 2 blocks of 4 with overprint in vermilion and bright vermilion, VF quality! (Image)

GJ.69, 1884 1c. on 15c. vermilion ovpt., beautiful block of 6 stamps, very nice (Image)