GJ.35, 1867 Balcarce 1c. purple, DIE PROOF by the National Bank Note Co. printed on thin paper, handsome, rare! (Image)

Folded cover sent to Buenos Aires on 15/JA/1873 franked with 5c. Rivadavia (GJ.38) with spectacular mute "circle of sliced wedges" cancel along datestamp with Maltese cross of CONCEPCIÓN DEL URUGUAY, very fine quality! (Image)

GJ.39BI, 19c. Belgrano diagonal BISECT used as 5c. on large fragment with double circle "ADMON DE CORREOS - TUCUMAN", excellent and rare, with Alberto Solari certificate (Image)

RARE CANCEL: GJ.49, 1876 Rivadavia 8c. rouletted, with pen cancel of "APOSTOLES" (Misiones), only one known! (Image)

GJ.57h, with PROVISORIQ variety, VF quality! (Image)

GJ.59b, "without PROVISORIO" variety, very fine quality, very scarce (from the top row of some of the few sheets with the overprint shifted downwards, less than 100 examples in existence!), very fine quality! (Image)

GJ.59g, DOUBLE OVERPRINT variety, one with "PROVISORIO" at top, also offset impression of the ovpt. on back, very fine quality, rare! (Image)

GJ.60 + 60o + 60r, 1882 ½c. on 5c. (large P), beautiful block of 50, the 20 bottom stamps with variety "DOUBLE OVERPRINT, one inverted in negative", the 30 top stamps normal except for position 50 with "PROVISOBIO" variety, mint original gum (some MNH), some perforation reinforced with hinges, excellent and very attractive, catalog value US$584+ (Image)

GJ.60e, with INVERTED overprint variety, VF quality! (Image)

GJ.60f, variety "INVERTED overprint and PROVISORIO at top", very fine quality, rare! (Image)

GJ.71a, with variety "½" at top, very fine quality! (Image)

GJ.73b, ½c. on 15c. INVERTED black overprint, block of 4 of very fine quality, one of the few in existence, very rare! (Image)

GJ.91A, 30c. Dorrego REDISH CHOCOLATE, fantastic example of very fine quality, rare. With tiny hinge trace, very fresh, excellent color, very well perforated, great beauty! (Image)

GJ.91A, 1888 Dorrego 30c. redish chocolate, superb! (Image)

GJ.99,1889 1c. V.Sarsfield WITH Globes watermark, very nice grayish dun color, VF! (Image)

GJ.100,1889 1c. V.Sarsfield WITH Stiller & Laas wmk, VF quality, rare! (Image)

GJ.105P, IMPERFORATE pair, mint lightly hinged, superb! (Image)

GJ.111P, IMPERFORATE pair, mint lightly hinged, superb! (Image)

GJ.114P, imperforate pair, mint lightly hinged, superb! (Image)

GJ.114, 60c. Gervasio Posadas, die proof in olive green, printed on thin paper mounted on card, excellent quality! (Image)

GJ.115 + 116 + 118, beautiful used blocks of 4 of the 3 high values of the Sudamerica issue, excellent quality! (Image)

GJ.117, 1889 10P. Vicente López, DIE PROOF in orange printed on smooth laid paper, excellent quality (Image)

GJ.118A, 1889 Brown 20P. mint, tiny hinge mark, very fresh, superb! (Image)

GJ.119A, 1889 50P. Dean Funes exceptionally perforated, mint original gum, VF quality! (Image)

GJ.120, 1889 ½c. Urquiza with COMPOUND PERF 12 x 11½, mint, very fresh, excellent quality, very rare! (Image)