GJ.19, 5c. 1st or 2nd printing, with VARIETY: paper fold, repaired tear (Image)

GJ.20c+j, 5c. 3rd printing, attractive MULATTO example with INVERTED watermark, repaired defect, scarce combination of varieties! (Image)

GJ.23, 10c., with "CERTIFICADO" cancel + "MENDOZA" datestamp with Maltese cross (+150%), it appears imperforate!, scarce! (Image)

GJ.23, 10c. worn impression, with paper repair (replacado) to make it look like imperf example, forged cancel, very nice (Image)

GJ.23, 10c. semi-clear impression, with complete perfs, superb (Image)

GJ.24, 15c., worn impression, lightly perforated (it appears imperforate), with dotted cancel + framed "CÓRDOBA", excellent quality! (Image)

GJ.24, 15c. used in Rosario, very ample margins, excellent (Image)

GJ.24SD, 15c. dull impression, IMPERFORATE (it missed the perforating machine), blue cancel to be identified, one just margin, very scarce VARIETY! (Image)

GJ.25, 5c. 4th printing, with stagecoach mail cancel "Ns PENINSULARES - TORRES BERGEIRE y Ca - POTOSÍ 152", rare! (Image)

GJ.25, 5c. 4th printing, with VARIETY: Rivadavia with hat, very lightly cancelled (Image)

GJ.25, 5c. 4th printing, with framed "CORDOBA" cancel, VF quality (Image)

GJ.26, 5c. 5th printing, on fragment, with VARIETY: spot without ink above the "A" of CENTAVOS, excellent (Image)

GJ.33, 5c. 7th printing PERFORATED, with large datestamp of CORRIENTES (very rare on this printing), position 36 (plate D) (see the double frame line at bottom right), small thin in the hinge area, superb front (Image)

GJ.E22, FORGERY of proof printed on London on card, interesting (Image)

R.1, 5c. black, reprint made by Compañía Sudamericana de Billetes, small thin on back, excellent front (Image)

R.2, 5c. blue, reprint made by Compañía Sudamericana de Billetes, with VARIETY: paper fold, tiny thin on back, excellent front (Image)

R4, 5c. chestnut-red, reprint made by Compañía Sudamericana de Billetes, VF (Image)