GJ.1, marginal block of 4, superb (Image)

GJ.1/3, cmpl. set in blocks of 4 (2 lightly hinged and 2 MNH), excellent and rare! (Image)

GJ.654, $3.60 high value of the set, VF quality, low start (Image)

GJ.654, high values of the set, light staining (Image)

GJ.660/64, cmpl. set with blue ovpt., the 2 low values with light staining, good opportunity (Image)

GJ.715/9, complete set, very low start! (Image)

GJ.717, lightly hinged, very fresh gum (Image)

GJ.719, high value of the set with VARIETIES: "9" of "1931" broken + color line between "C" and "I" of SERVICIO, excellent (Image)

GJ.720/22, cmpl. set of excellent quality (Image)

GJ.720/2, cmpl. set, Zeppelin 5th flight of the year (Image)

GJ.720, block of 4, with VARIETY: offset impression of the overprint on back, VF quality (Image)

GJ.720/22, complete set (Image)

GJ.845/9, airmail, cmpl. set, the high value with light hinge mark, the rest MNH (Image)

GJ.845/49, complete set, franking a cover sent from Buenos Aire to Toronto (Canadá) on 23/OC/1940 (first day), censored, excellent (Image)

GJ.845/9, airmail, complete set on cover with first day postmark (Image)

GJ.845/849, complete set, photogravure, PROOFS printed on thick paper with glazed front, perf 13½ x 13, 4 values in light green + 1 in olive green (1958 Kneitschel, volume II, page 749), VF quality! (Image)

GJ.845SG, printed ON GUM, small defect on front, rare! (Image)

GJ.847a, with VARIETY: "1" with period (pos.70) (Image)

GJ.848, marginal block of 10, with VARIETY: Telegraph lines along the lower row, small stain spots (Image)

GJ.848a + 848b, block of 4, VARIETIES: spot above the cockpit (pos.9) + telegraph lines (pos.18), toned gum (Image)

GJ.848a, with VARIETY: Telegraph lines (pos.18) (Image)

GJ.848, proof on thick paper glazed on back, green, with another impression of the same face value on back in chestnut (1958 Kneitschel, volume II, page 749), VF (Image)

GJ.848, block of 4, PROOF on thick paper with glazed front, in brown (1958 Kneitschel, volume II, page 749), excellent quality (Image)

GJ.848, corner pair, PROOF on paper of glazed front, in brown (1958 Kneitschel, volume II, page 749), VF (Image)

GJ.848A, block of 4, printed in blue-green on green, dirty plate, VF (Image)