GJ.13, 4R. green, superb example! (Image)

GJ.14, 1P. blue, clear impression, immense margins, fantastic and superb example, signed by Victor Kneitschel on back! (Image)

GJ.16a, 4R. green, with complete DOUBLE IMPRESSION variety, wide margins, superb example! (Image)

GJ.17, 1P. blue, semi-clear impression, superb example! (Image)

GJ.17, 1P. light blue, semi-clear impression, wide margins, on fragment with complete blue grid cancel of Buenos Aires, superb! (Image)

GJ.17, 1P. semi-clear and worn impressions, 5 examples showing a range of interesting colors: very dark blue, dark blue, blue, light blue and azure, all with very ample margins and superb. The first one also has an interesting variety: "spot over OR of CORREOS", very fine group! (Image)

GJ.17, 1P. light blue, very ample margins, with blue grid cancel of Buenos Aires, superb! (Image)

GJ.17b, 1P. blue with PARTIAL DOUBLE IMPRESSION, very notable at left, with a light pressed out crease else excellent! (Image)

GJ.17A, 1P. INDIGO blue, beautiful example with dotted cancel of Buenos Aires, excellent quality! (Image)

GJ.21, 1P. rose, dull impression, wide margins, excellent quality! (Image)

GJ.22, 2P. blue, almost clear impression, with VARIETY: "Large blue spot below the central circle, above the letters S and A", excellent quality! (Image)