GJ.845/49, cmpl. set on covers used in Buenos Aires on 23/OC/1940 with first day pmk, rare (Image)

GJ.849, high value of the set in marginal block of 4 (Image)

GJ.849, $2.5 photogravure, block of 4 of VF quality! (Image)

GJ.857/62, offset, cmpl. set with round sun wmk + 50c. straight rays (Image)

GJ.1089a, marginal pair, one with variety: Dot between "A" and "R" of ARGENTINA (pos.52) (Image)

GJ.1255, block of 4, with VARIETIES: the left stamps with double impression of red color + lower left stamp with small circle on the wing, top stamps lightly hinged and lower stamps MNH, VF (Image)

GJ.1255, block of 4 with VARIETY: shifted perforation (Image)

GJ.1427a, with VARIETY: Broken wing (Image)

GJ.1699, block of 4 with VARIETY: Shifted overprints and plate number in red (very unusual!), value of a normal block US$12 (Image)