GJ.HB 10, 1944 Catamarca & La Rioja earthquake victims, National Anthem, MNH, excellent quality! (Image)

GJ.HB 20, 1966 Philatelic Meetings, 4 COLOR PROOFS printed on the adopted paper and with color combinations different from the issued ones, VF quality! (Image)

GREAT RARIETY: GJ.HB 22, 1966 Declaration of Independence 150 years, complete sheet of 25 values with YELLOW OMITTED (green and several other shades are not formed in each stamp), the ONLY one that I have ever seen, possibly unique, fantastic. We include a normal sheet for comparison, low start considering that it contains 25 stamps without a color, only $60 each in average, being unique! (Image)

SPECTACULAR VARIETY: GJ.HB 22, 1966 Declaration of Independence 150 years, complete sheet of 25 values with VERY SHIFTED COLORS, notable and the only one that I have ever seen. It contains 22 stamps with the colors dramatically shifted, their market value is at least US$50 each, great opportunity! (Image)

GJ.HB 198, 2009 Protect Polar regions & glaciers, with VARIETY: RED color very shifted, among other effects the face value is strongly shifted downwards producing double inscriptions, excellent! (Image)

GJ.HB 198, 2009 Protect Polar regions & glaciers, with VARIETY: SILVER color very shifted, among other effects the inscription "REPUBLICA ARGENTINA" is outside the stamps, excellent! (Image)