GJ.14, 1P. light blue, clear impression, tiny thin on back, superb appearance (Image)

GJ.14, 1P. blue, clear impression, unused, small thins on back, very good front! (Image)

GJ.14, 1P. blue, clear impression, with dotted 6x6 cancel of B.Aires, with attractive "PE$O" variety, VF quality (Image)

GJ.16, 4R. green, worn impression, tiny thin, superb front, very low start (Image)

GJ.16, 4R. green, used in Buenos Aires in AP/1862, small thins on back, very good front (Image)

GJ.16, 4R. green, almost clear impression, dotted cancel, good margins, VF quality (Image)

GJ.17, 1P. very dark blue, unused, with VARIETY: illegible "AIRES" due to printing flaw, small thins on back, very good front (Image)

GJ.17, 1 P. blue, unused, with random VARIETY: small thin white line at bottom right, thins on back, rare! (Image)

GJ.17c, 1P. blue, pressed out crease, superb front (Image)

GJ.17, 1P. blue with blue grid cancel, and 3 immense margins (Image)

GJ.17, 1P. blue with dotted cancel, almost clear impression, excellent quality (Image)

GJ.17, 1P. blue, datestamp of Buenos Aires with "S" for 28/JUN/1862, small thin on back, superb front (Image)

GJ.17c, 1P. blue, dotted cancel, with VARIETY: Thin line from the "O" of FRANCO to the frame of neighboring stamp at right (Image)

GJ.17b, 1P. blue, partial double impression, with paper thin in the hinge area (Image)

GJ.21, 1P. rose, unused, defect in the top left corner, good opportunity (Image)

GJ.21, 1P. dull rose, very lightly cancelled, minor thin on back, very good front (Image)

GJ.21, 1P. rose, with datestamp of Buenos Aires "S" of 6/AP/1865 (very late date), small thin on back (Image)

GJ.21k, 1P. rose, partial double impression, used in Buenos Aires, uncommon (Image)

GJ.22, 2P. blue, dotted cancel, 2 wide margins, low start (Image)

GJ.22, 2P. blue, used in Buenos Aires, JUMBO margins, tiny thin on back, striking front (Image)