GJ.13, 4R. green, on bluish paper, CLEAR impression, thins on back, very good front, good opportunity! (Image)

GJ.16, 4 R. green on bluish paper, minor defect only visible on back, very good front (Image)

GJ.16, 4R. green, with double grid cancel in blue, thin on back, excellent front, good opportunity (Image)

GJ.16b, 4R. green on bluish paper, with 6x6 dotted cancel of San Nicolás, partial DOUBLE IMPRESSION, small defects, rare! (Image)

GJ.17, 1P. blue with very inky impression, copy of excellent quality (Image)

GJ.17, 1P., 11 stamps with defects, there are different shades, varied cancels (including receiving mark of Montevideo), VARIETIES (GJ.17d, "BUEQS" error), very low start! (Image)

GJ.17, 1P. blue with receiving cancel of Montevideo, VF (Image)

GJ.17b, 1 P. light blue, with VARIETY: partial double impression (both very separated), VF quality and very rare! (Image)

GJ.17c, 1P. dark blue, with VARIETY: "1" without period, excellent quality (Image)

GJ.17A, 1P. milky blue, used in Buenos Aires, with VARIETY: right frame broken between the "R" and "A" of FRANCO, rare and of excellent quality! (Image)

GJ.18, 2P. red, used in B.Aires, with VARIETY: Liberty with goatee, defects (Image)

GJ.20, 2 P. blue, CLEAR impression, datestamp of Buenos Aires in blue, 3 JUMBO margins, although it has a thin in the hinge area, its front is striking! (Image)

GJ.21, 1P. rose, unused, small thin on back, low start (Image)

GJ.21, 1P. rose, datestamp of Buenos Aires "S" for 14/FE/1863 almost complete, with 4 JUMBO margins, minor defects, superb appearance (Image)

GJ.21, 1P. rose, dotted cancel, with VARIETY: ink spot in front of the nose, small thin, very good front (Image)

GJ.21g, 1P. rose with VARIETY: top right angle defective (pos.12), with defects, low start (Image)

GJ.22, 2P. blue, pressed out crease, VF appearance, good opportunity (Image)

GJ.22, 2P. light blue, with VARIETY: Bottom frame blurred due to printing flaw, small thin on back (Image)

GJ.22, 2P. blue, pen cancelled, just margins (Image)

Forgery of 1P. rose (Image)

GJ.16/18 + 21/22, complete basic set, all with defects but collectible, catalog value US$353, good opportunity (Image)