GJ.1, Un Real blue, type 3, franking an entire letter sent from Buena Vista to Goya on 6/SE/1863!! (late date), rare, superb quality! With Alberto Solari certificate. (Image)

GJ.1b, with variety: "Transformation defect between the base of the N and T in type 7", pen cancelled in Corrientes, superb! (Image)

GJ.3, blue, with DOUBLE pen cancel (of 2 different places), very rare, superb! (Image)

GJ.3, blue, type 2, huge margins, franking a folded cover to Corrientes, with pen cancel of Goya, excellent quality! (Image)

GJ.5, bluish green, fantastic pair with pen cancel of Goya, very nice, rare! (Image)

GJ.5, bluish green, example of huge margins on fragment with double cancellation: pen + dotted cancel of Corrientes, splendid color, absolutely fresh, a superb piece! (Image)

GJ.6, yellow, with extremely rare mute BLUE dotted cancel of Corrientes, superb, very few known! (Image)

GJ.6c, yellow, with VARIETY "Without bottom box", mint with full original gum (+50%), superb! (Image)

GJ.7, dark blue with VARIETY: "Partially unprinted on the left", superb, spectacular! (Image)

GJ.7, dark blue USED TWICE and LATE USE, on fragment. It bears an arch CORRIENTES strike on the center, barely visible due to the dark color of the paper. Possibly years later after its first use, someone removed the stamp and used it again as postage, with a second circular CORRIENTES cancel with Maltese cross of 4/JUN/1878, by far the latest known date of use (Knetischel reports 25/SE/1873!!), superb piece, a philatelic gem of exceptional rarity! With Alberto Solari certificate. (Image)

GJ.7b, dark blue with variety: very notable complete DOUBLE IMPRESSION, excellent quality and very rare! (Image)

GJ.9, rose-lilac with VARIETY: Large unprinted area at right, used with barred cancel, superb and very rare! (Image)

GJ.12, brick rose, mint, excellent quality, rare. With Alberto Solari certificate. (Image)

GJ.14, light lilac, beautiful pen cancelled stamp, excellent quality. "Rose" examples are rarer cancelled by pen strike than handstamp! (Image)