GJ.17, 10c. IMPERFORATE, yellowish green, VERY clear impression, 3 good margins, small defects, good opportunity (Image)

GJ.19, 5c. 1st or 2nd printing, with VARIETY: spot on the "I" of REPUBLICA, one border separated with scissors (Image)

GJ.19, 5c. 1st or 2nd printing, with wreathed Concordia cancel in blue (Image)

GJ.19, 5c. 1st or 2nd printing, clear impression, line watermark below, used in Buenos Aires, VF (Image)

GJ.19g, 5c. 1st or 2nd printing, with VARIETIES: vertically ribbed paper + very oxidized ink at top, very interesting, the back side resembles one of 6th printing, excellent quality (Image)

GJ.19, 5c. 1st printing, very clear impression, position 53 ("N" and "C" of CINCO joined + thin line in bottom right border), used in Rosario, superb (Image)

GJ.19O, 5c. 1st printing, with VARIETY: Dot on the temple (position 88, plate B), used in Rosario, corner crease, excellent appearance, low start! (Image)

GJ.20, 5c. 3rd printing, 2 very different examples, both used in Buenos Aires with different cancels, VF quality (Image)

GJ.20, 5c. 3rd printing, 2 examples with cancels of different towns and in different color, VF quality (Image)

GJ.20, 5c. 3rd printing, typical example with OM cancel, VF (Image)

GJ.23, 10c. worn impression, thin on back (Image)

GJ.24A, 15c. slate blue, with 6x6 dotted cancel of San Nicolás, one margin just (Image)

GJ.24SD, 15c. semi-clear impression, excellent stamp with original gum, IMPERFORATE (it missed the perforating machine), rare! (Image)

GJ.25, 5c. 4th printing, unused, minor defects, VF appearance (Image)

GJ.25, 5c. 4th printing, carmine-rose, tiny thin on back, VF front (Image)

GJ.26, 5c. 5th printing, with blue cancel to be identified of traveling PO, small tear in one border (Image)

GJ.26, 5c. 5th printing, excellent example cancelled "CATAMARCA", superb (Image)