GJ.5, Dos Ps. blue, very clear impression, type 30 on the reconstruction, mint, very nice! (Image)

GJ.5A, Dos Ps. indigo blue, type 35 on the Kneitschel reconstruction, used with ponchito cancel, very clear impression, huge margins, superb example (rare in this outstanding quality!) (Image)

GJ.9, 4rs. gray-dun, very neat and clear impression, with ample to large margins, mint, superb example! (Image)

GJ.9, 4rs. chestnut, with blue ponchito cancel, light crease only visible from the back, excellent front! (Image)

GJ.10, IN Ps yellowish dun, with large margins, mint, very fresh, excellent, very rare in this condition! (Image)

GJ.10A, IN Ps. light dun, fantastic example of 4 complete margins (2 huge), tied on fragment by light ponchito cancel, superb! (Image)

GJ.11, IN Ps. blue, tied on fragment by ponchito cancel, superb! (Image)

GJ.11C, IN. Ps INDIGO blue, type 15 on the reconstruction, "F of FRANCO broken" variety, mint, ample margins, superb example, very rare, signed by Victor Kneitschel on back! (Image)

GJ.11C, IN Ps. indigo blue, a stamp and a half with ponchito cancel of San Nicolás, excellent quality, rare! (Image)

GJ.14, 1P. blue, clear impression, beautiful and superb example! (Image)

GJ.14j, 1P. blue, clear impression, with variety "top right angle defective", superb, rare! (Image)

GJ.17, 1P. light blue, with light vertical paper fold, mint, superb example! (Image)

GJ.17b, with very notable PARTIAL DOUBLE IMPRESSION variety, excellent quality! (Image)

GJ.21g, with variety "top right angle defective", excellent quality! (Image)

GJ.22b, with variety "lower left angle defective and spot below the A of FRANCO", excellent quality! (Image)

GJ.1, 5c. red, with wreathed FRANCA cancel of Río Cuarto (+300%), tiny thin on back, excellent front, rare. Signed on back by Alberto Solari (Image)

GJ.1, 5c. bright red, franking a folded cover with ellipse MENDOZA - FRANCA cancel, addressed to DOMINGO F. SARMIENTO, excellent quality, rare! With Alberto Solari certificate. (Image)

GJ.2BID, 10c. diagonal bisect used as 5c. on a fragment with CORDOBA-FRANCA cancel, excellent quality, with Elizabe certificate and signed on back by Alberto Solari! (Image)

GJ.1, 1856 Un Real M.C. blue, type 5, the top frame "crushed" over the letters, with pen cancel of Curuzú Cuatiá, excellent quality! (Image)

GJ.1, 1856 Un Real M.C. blue, type 6, pen cancelled, excellent quality! (Image)

GJ.2, 1860 provisional with goose quill stroke through the value, with pen cancel of Trinchera de San José, excellent quality, signed by Solari on back. (Image)

GJ.3, blue, MNH pair formed by types 7 and 8, with its original brown gum intact and perfect (+200%), superb! (Image)

GJ.3, blue, with part of the impression missing, pen cancelled in Goya, superb, rare! (Image)

GJ.4, yellow-green, type 2, with pen cancel of Bella Vista, superb! (Image)

GJ.5, bluish green, with arch CORRIENTES cancel, very fine example, rare! (Image)