INTERESTING CANCEL: GJ.1 used in Concepción del Uruguay, cancelled "CORREOS DEL URUGUAY" in blue, with the month in the cancel formed by a "9" and the letters "vRE", tiny thin on back, very good front, rare, signed by Alberto Solari (Image)

GJ.1, with ellipse MENDOZA - FRANCA cancel, VF quality, signed by Victor Kneitschel (Image)

GJ.1, with FRANCA cancel of Gualeguaychú, superb example, signed on back by Victor Kneitschel (Image)

GJ.1, 5c. red, franking a front of folded cover with double ellipse ROSARIO - FRANCA cancel, excellent quality, signed by Victor Kneitschel. (Image)