GJ.35 + 41, on fragment with datestamp of Gualeguaychú (Entre Rios) of JUL/1877, rare! (Image)

GJ.38 x2, pen cancelled, franking a long letter sent from B.Aires to Bourdeux, written in French, with octagonal mark "PAQ. FR. J. N° 6" of 25/JA/1875 and B.Aires datestamp of 26/JA, VF (Image)

GJ.39, franking a folded cover sent from Rosario to Corrientes on 9/JA/1869, very attractive (Image)

GJ.44, with MUESTRA ovpt. (Image)

GJ.53, with cancel of "Est Amb Fluvial B.A. - R-P-S-F.", VF (Image)

GJ.54A, franking a cover sent from B.Aires to France on 6/SE/1890, with French mark "LIGNE J - PAQ. FR. N°2", on back illustration of "Hotel de Londres", and arrival mark, light staining (Image)

GJ.55, with VARIETY: Printer imprint in top border (Image)

GJ.59l, with VARIETY: without parenthesis at right, VF (Image)

Little Envelope, unadopted essay of 12c. designed and lithographed by L. Jacobsen & Cia., block of 6 with gum, 2 examples with VARIETIES: top right stamp, sun with bump, and bottom right stamp "CORREUS", small defects, rare! (Image)

GJ.69a, 1c on 15c. vermilion ovpt., with VARIETIES: no line below 1884 + "1" without base, along a normal stamp, VF (Image)

GJ.71/6, cmpl. set with overprint, very nice (Image)

GJ.74b, 1c on 15c., with VARIETY: DOUBLE carmine overprint, rare! (Image)

GJ.80A, indog, MNH, superb (Image)

GJ.92, fantastic example with extremely fresh gum, and MUESTRA overprint, catalog value for a normal example is US$ 350 + 100%, superb (Image)

GJ.102, DIE PROOF printed on thin paper, in rose-red, VF (Image)

GJ.103, PROOF on card, in blue, VF (Image)

GJ.106, die proof printed on thin paper, in dark chestnut, VF (Image)

GJ.109, 8c. Rivadavia, PROOF printed in rose-red color on card (1958 Kneitschel, volume II, page 691), VF quality! (Image)

GJ.110, with VARIETY: very wide margin below with printer imprint (Image)

GJ.111, PROOF on card, in blue, VF (Image)

GJ.112, sheet margin, MNH (Image)

GJ.112, PROOF on card, in the adopted color, VF (Image)

GJ.114, PROOF on card, in rose-red (Image)

UNDOPTED ESSAY 90c. Saavedra, printed on card, in brown, VF (Image)

GJ.115, $1 San Martín, VF quality, MNH (Image)