GJ.16, 5c. rose-red, dull impression, 1st printing imperf, handsome stamp with blue CONCORDIA ellipse, very fine quality, with Alberto Solari certificate (Image)

GJ.16b, 5c. 1st printing imperforate, with INVERTED WATERMARK variety (reversed), used in Buenos Aires in MAY/1864, superb, signed by Victor Kneitschel on back, rare! (Image)

GJ.19b, 1st printing, very clear impression with PARTIAL DOUBLE IMPRESSION variety, franking an entire letter sent from Rosario to San Pedro on 24/JA/1865. The text is about the sale of lottery tickets, superb! (Image)

EXTREMELY RARE COMBINATION OF VARIETIES: GJ.19c+l, 1st printing, with varieties: IMPERFORATE HORIZONTALLY and with INVERTED WATERMARK, used in Salta, extremely rare (only a couple of examples are known!), with Alberto Solari certificate (Image)

GJ.20, 3rd printing, with variety "beauty spot on the forehead", used in Mendoza, VF! (Image)

GJ.21, 10c. clear impression, with double semi-circle CÓRDOBA cancel, superb (Image)

GJ.25, 4th printing, on fragment with almost complete cancel of Buenos Aires, VF quality! (Image)

GJ.28c, 5th printing, INVERTED WATERMARK variety (reversed), used, excellent quality, very rare! (Image)

GJ.32, 7th printing imperforate, PARANÁ cancel with ERROR in the year: 1866 instead of 1867!!, with minor barely visible defect, exceptional front, rare! (Image)

GJ.34c, 8th printing, with very notable Lacroix Freres watermark, used in Santa Fe on 30/JUN/1872, excellent quality, rare! (Image)