GJ.39BI, Belgrano 10c. diagonal bisect used as 5c. on large fragment sent to Corrientes, with double circle cancel of GUALEGUAY, excellent, rare, with Alberto Solari certificate (Image)

GJ.56, 1877 25c. Alvear, mint, sheet margin with printer imprint, superb, rare! (Image)

RARE COVER WITHOUT DUES: GJ.135/136, 1892 Discovery of America 400 years, the set of 2 values + GJ.106, total 12c. that paid the single rate to Europe, franking a cover sent to Germany on 12/OC/1892 with arrival mark of 21/NO. It was forwarded by steamer "America, via Genova", the use of these stamps was not allowed for international mail, and there are very few known covers that did not receive any dues, excellent quality, ex-Loeb (price US$650) (Image)

1910 Centenary of the May Revolution, die essay of an unadopted design, without face value, printed (engraved) in dark lilac on paper with glazed front, excellent quality, rare! (Image)

GJ.307, 1910 12c. Congress, TRIAL COLOR PROOF, complete sheet of 25 examples printed on paper with bright front, VF quality, rare! (Image)

GJ.462CD, 1918 5c. San Martín perf 13½x12½, block of 4 WITH RIGHT LABELS, also sheet margin with partial impression of stamps of the neighboring sheet, MNH, excellent quality! (Image)

RARE VARIETY: GJ.594, 1924 ½c. San Martín w/o period, block of 12 containing 3 stamps IMPERFORATE VERTICALLY. The central stamps have very light impressions of the vertical perfs, and in the 3 left stamps they do not cut through the paper, in the 4th one a little more marked. Also with double horizontal perforation at top, excellent, very rare and unique! (Image)

GJ.610, 1924 24c. San Martín without period PERFORATION 13½, MNH (+50%), with light natural crease, very rare in this excellent quality! (Image)

GJ.757SG, 30c. Wool (sheep), PRINTED ON GUM, MNH (+30%), excellent! (Image)

GJ.762U, 2P. Fruit, on AUSTRIAN PAPER, MNH (+30%), superb, rare! (Image)

GJ.763AP, 5P. Iguazú falls, IMPERFORATE PAIR, sheet corner, MNH (+30%), fantastic and of excellent quality! (Image)

Small envelope made of cardstock containing stamps of 35c. that the Post gave for free with the purchase of stamps, type II (size open 8.5 x 6.8 cm), color of the cardstock is yellow with illustrations in vermilion-red and letters in dark blue (not catalogued by Pettigiani, who only lists letters in black), excellent quality, very rare! (Image)

GJ.927P, 1946 Roosevelt, extremely rare IMPERFORATE PAIR, recent find, variety to be included in the next edition of the GJ catalog. There is only one sheet like this, and it is a "special impression dedicated to Mrs. Anna Eleanor Roosevelt, as a tribute of the Argentine nation to the memory of her distinguished husband, Mr. Franklin Delano Roosevelt", great rariety! (Image)

GJ.927P, 1946 Roosevelt, extremely rare IMPERFORATE BLOCK OF 4, recent find, variety to be included in the next edition of the GJ catalog. There is only one sheet like this, and it is a "special impression dedicated to Mrs. Anna Eleanor Roosevelt, as a tribute of the Argentine nation to the memory of her distinguished husband, Mr. Franklin Delano Roosevelt", great rariety! (Image)

ATTRACTIVE VARIETY: GJ.1015, 1952 Eva Perón 1P., corner block of 4 with one stamp almost completely and another one partially printed on back ON GUM due to a pre-printig foldover, excellent quality, fantastic! (Image)

GJ.1139A, 4P. San Martín typographed, on chalky paper, block of 10 printed on END-OF-ROLL DOUBLE PAPER, one stamp printed partially on gum, excellent! (Image)

GJ.1148B, 1959/64 100P. Skier, pair on END-OF-ROLL double paper, MNH, extremely rare variety in this stamp! (Image)

GJ.1637, 1974/6 6P. San Martín, END-OF-ROLL strip of 3 joining normal paper with another MARBLED paper, very interesting and rare! (Image)

GJ.1780ACD, Cockade 700P. printed on phosphorescent unsurfaced paper, block of 4 with RIGHT LABELS, very scarce, undervalued in the catalog! (Image)

GJ.1792, 500P. Candonga chapel printed on VERY THIN (pelure) and transparent paper, probably from end-of-roll piece, VF quality, rare! (Image)

GJ.1849a, 200P. Flag memorial, block of 6, the central stamps with LIGHT BLUE OMITTED, extremely rare (ony 10 similar pieces in existence). This variety will be included in the next edition of the GJ catalog (Image)

GJ.3705NACJ, 1P. Indigeneous cultures, on UV netural paper, with security mark below, WITH BOTTOM LABEL, excellent quality, rare. NOTE: this label is a recent find, it will be included in the next edition of the GJ catalog (Image)

GJ.3705NACZ, 1P. Indigeneous cultures, on UV netural paper, with security mark below, WITH LEFT LABEL, excellent quality, rare. NOTE: this label is a recent find, it will be included in the next edition of the GJ catalog (Image)

GJ.4233/4274, 2018 provisionals, the 2 complete sets (in total 42 values), MNH, excellent quality. It is extremely rare to find a complete set with ALL the 42 issued stamps, less than 100 complete sets are known, and in the future they will be one of the great modern rarities of Argentine philately! (Image)

GJ.4310A, 2019 $200 Lanin National Park, with SECURITY MARK ON THE RIGHT on perforation (attention, it is NOT GJ.4355, but a variety of GJ.4310), very fine quality, rare! (Image)