GJ.19, 5c. brick red, 1st or 2nd printing, on cover sent from Buenos Aires to Montevideo, with semi-mute OM cancel and arrival datestamp of Montevideo (13/SE/1864), VF (Image)

GJ.19i, 5c. rose-red, 2nd printing, MULATTO, on front sent to Asunción (Paraguay), with semi-mute OM cancel of Buenos Aires, minor defect, very nice (Image)

GJ.20, 5c. orangish dun-red, 3rd printing, on entire letter sent to Tupisa (Bolivia) on 24/MAR/1865, tied by SALTA small elipse (+50%), VF (Image)

GJ.21, 10c. yellow-green, clear and dry impression, with little ink below, very nice (Image)

GJ.21, 10c. green, clear impression, imperforate (it missed the perf machine), pen cancelled, VF (Image)

GJ.21, 10c. green, clear impression, with datestamp of Rosario, VF (Image)

GJ.23, 10c. green, worn impression, used, small thin on back, nice front (Image)

GJ.23, 10c. green, worn impression, used, VF (Image)

GJ.23, 10c. green, worn impression, used, with small thin on back, nice front (Image)

GJ.23, 10c. green, worn impression, with Concordia cancel, very nice (Image)

GJ.23, 10c. green, dull impression, used, small thin on back, nice front (Image)

GJ.23, 10c. green, very worn impression, with Rosario cancel, ink on back, very nice (Image)

GJ.23, 10c. green, very worn impression, with Rosario cancel, and one blunt corner (Image)

GJ.23, 10c. green, semi-clear impression, used, VF quality (Image)

GJ.24, 15c. dark blue, worn impression, with Córdoba cancel, superb! (Image)

GJ.24, 15c. cerulean, worn impression, with cancel of Rosario, thin on back, very nice front (Image)

GJ.24, 15c. blue, semi-clear impression, used, thin on back, very nice front (Image)

GJ.24, 15c. blue, inky impression, used, thin on back, nice front (Image)

GJ.24, 15c. blue, worn impression, with dotted cancel, re-perforated, repaired (Image)

GJ.24, 15c. blue, semi-clear impression, used, VF quality (Image)

GJ.24, 15c. light blue, dull impression, with datestamp of Buenos Aires, VF quality (Image)

GJ.24A, 15c. slate blue, inky impression, lightly cancelled in one corner, very nice (Image)

GJ.25, 5c. rose, 4th printing, worn impression, with biconcave ellipse cancel of ROSARIO, superb (Image)

GJ.25, 5c. dark rose, 4th printing, worn impression, with Córdoba cancel, VF (Image)

GJ.25, 5c. redcurrant rose, 4th printing, worn impression, used, VF quality (Image)