GJ.13/15, 1859 Die proofs printed in black on thin paper, very neat impression, excellent and extremely rare, with Alberto Solari certificate (Image)

GJ.15, 2P. red, CLEAR impression, wide margins, very good color, fresh, superb! (Image)

GJ.17, 1P. dark blue, "CORRECS" variety, wide margins, franking a front of folded cover with blue grid cancel of Buenos Aires, superb, varieties on cover are scarce! (Image)

GJ.17Ac, 1P. milky blue with variety "1 without period", mint, very fine and rare, good opportunity at low start! (Image)

GJ.22d, 2P. blue with very notable Lacroix Freres watermark, very fine quality, rare! (Image)

GJ.1e, 5c. with variety "two periods after CENTAV", franking an entire letter sent from Rosario to Buenos Aires on 22/JA/1859, excellent quality, signed by Kneitschel (Image)

GJ.2BID, 10c. green bisect used as 5c. on fragment, with complete cancel of MENDOZA, very fine quality, signed by Alberto Solari (Image)

GJ.3, blue, 2 examples on fragments with attractive pen cancels, excellent quality! (Image)

GJ.4, yellow-green, type 3, pen cancelled, VF quality! (Image)

GJ.4, yellow-green, type 5, pen cancelled, excellent! (Image)

GJ.4, yellow-green, type 6, pen cancelled, excellent! (Image)

GJ.4, yellow-green, type 7, faint pen cancel, very fine quality! (Image)

GJ.4, yellow-green, type 8, pen cancelled, very fine quality! (Image)

GJ.4, yellow-green, type 8, tied on small fragment by rimless datestamp of Corrientes (+30%), very fine quality! (Image)

GJ.5, bluish green, with pen cancel of Caa Catí, excellent quality! (Image)

GJ.6, yellow, spectacular MNH block with the 8 types (+200%, only with hinge mark in the top margin not affecting the stamps!), light impression, very neat and clear, light gum (different types of gum were used for this color, from very light as in this block to very dark), excellent! (Image)

GJ.16, 3c. dull rose, complete sheet with 4 groups of 8, composition 2, disposition III. Mint with full original gum (+50%), catalog value US$1,950, very fine quality, rare, with Alberto Solari certificate. (Image)

GJ.17, magenta, used with Corrientes datestamp, excellent quality, rare! (Image)

GJ.7, 5c. rose, wide margins, very fine quality! (Image)

GJ.7, 5c. rose, corner block of 4, one WITHOUT ACCENT (position 9), the top examples show interesting printing spots, mint with gum, excellent quality, very rare! (Image)

GJ.8, 10c. green, used in Córdoba, VF quality! (Image)

GJ.10, used on fragment with a nice ellipse SAN JUAN - FRANCA cancel, excellent! (Image)

GJ.10, 5c. no accent, rose, with very nice double oval FRANCA cancel of San Luis in green-blue (+100%), excellent quality! (Image)

GJ.10, with "CORREOS DE GUALEGUAYCHU" ellipse (+75%) very well applied, excellent quality! (Image)

GJ.10, used in San Juan, with RETOUCHES in lined background, above the "C" of CENTAVOS, very interesting! (Image)