GREAT RARITY: GJ.17, with a foreign receiving cancel, probably Chinese or Arabic, unique example and possibly the most exotic cancel on the "Cabecitas" issue. Small thin on back, excellent front! (Image)

GJ.18, 2P. red, worn impression, VF quality! (Image)

GJ.18, 2P. red, horizontal strip of 3 stamps with dotted cancel of Buenos Aires, just margins but complete, very nice and rare! (Image)

GREAT RARITY: GJ.18 used, printed on overlapping paper due to a defect in the manufacture of the paper (the effect is similar to an end-of-roll double paper), when soaked with water the stamp got separated into two parts (that were originally together) and that fit perfectly, unique example and the only one I have ever seen among thousands of classic stamps! (Image)

GJ.18, 2P. red with VARIETY: with beard, mint, very ample margins, fresh, excellent, rare. Catalog value of a "normal" value US$420 (Image)