GJ.1, 5c. blue, type 4 (with top sheet margin), it can be recognized for example for the small dot attached to the "B" of CORDOBA at top right, hinged, thin on back, superb front
GJ.1, 5c. blue, type 30 (last one on the plate), it can be recognized by the inner line of the outer oval broken between "C" and "O" of CORDOBA, hinged, small thins on back, superb front
GJ.2, 10c. black printed on vertically laid paper, mint with original gum (+25%), with a thin on back in the hinge area else excellent, ample margins, signed by Victor Kneitschel and with certificate of Alberto Solari. Catalog value US$5,000
