RARE COMBINATION OF VARIETIES: GJ.19a, 1st printing, clear impression, with COMPLETE DOUBLE IMPRESSION (one light and with upward shift), printed on VERY THIN PAPER, with vertical line watermark, and with LARGE PAPER FOLD, fantastic! (Image)

GJ.23BI, 10c. green diagonal BISECT used as 5c., on fragment with complete cancel of CONCORDIA, excellent quality! (Image)

GJ.23c, 10c. worn impression with INVERTED WATERMARK variety (reversed), excellent quality, rare! (Image)

RARE COMBINATION OF 15c. + 5th PRINTING: GJ.24 + 26, folded cover sent to Corrientes on 8/NO/1866 with attractive 20c. postage: a 15c. blue worn impression + 5c. of 5th printing, with dotted 7x7 cancel + datestamp of Buenos Aires, excellent quality, rare! With Alberto Solari certificate (Image)

GJ.28, 6th printing perforated, position 67 on the sheet of 100, superb example! (Image)

GJ.28, 6th printing perforated, position 75 on the sheet of 100, superb example! (Image)

GJ.28d, 6th printing perforated, DIRTY PLATE variety, position 8 on the sheet of 100, very fine quality! (Image)

GJ.34, 8th printing, mint, with large SHEET MARGIN at right, very rare, with minor fault (small thin on back), excellent appearance, beautiful example! (Image)

GJ.R1/R6, 1888 official reprint made by Cía Sudamericana de Billetes de Banco as commissioned by the government, the set of 6 values, the chestnut-red example with VARIETY "bottom right angle incomplete", very fine quality! (Image)

GJ.E23, proof of 5th printing on thick paper (100 microns), laid horizontally and vertically ("hessian"), excellent quality! (Image)