Sc.C8a, with double overprint variety, one inverted, VF quality! (Image)

GJ.662, 1P. Zeppelin with blue overprint, with VARIETY: shifted overprint, very nice! (Image)

GJ.1089A, on GLAZED paper, MNH, VF and scarce! (Image)

Sc.C6E, 1928 6P. on 10c. without watermark, mint, very fine quality, very scarce, with guarantee marks of J.Salzmann and Soc. Fil. de Chile (Image)

Sc.C6E, 1928 6P. on 10c. without watermark, mint, very fine quality, very scarce (genuine). Along example with forged overprint for comparison. (Image)

Sc.C12, 1928/32 3P. on 10c., 2 mint examples with different watermark positions (pos.3 and 4), excellent quality, very scarce (genuine). Along example with forged overprint for comparison. (Image)

Yvert 246a, 1950 Franco in Canary Islands WITHOUT control number on back, used, excellent quality, rare, catalog value Euros 1800 (Image)

Yvert 50/55, 1930 Congress of trains, complete set of 6 values with numbering printed on back "A000.000" (specimens), lightly hinged, VF quality! (Image)

Group of stamps of years 1936/7 with "VIA AEREA" ovpt., mint, some of very fine quality, others with some staining on the gum, interesting! (Image)

Yvert 1, "El Marinerito", 1927 50c., block of 4 of FIRST PRINTING and strip of 4 of the SECOND printing, VF quality, catalog value euros 640. (Image)

Yvert 1a, 1927 50c. with INVERTED OVERPRINT variety, very fine quality, very rare! (Image)

Yvert 1a, "El Marinerito", 1927 50c. INVERTED OVERPRINT variety + other values, franking an airmail cover sent from Lima to Paita on 13/SE/1928, excellent quality, very rare! (Image)

Yvert 4/5, 1934 Biplane, set of 2 values, proofs in different colors with little punch hole on the left face value and overprinted "WATERLOW & SONS LTD - SPECIMEN", excellent quality! (Image)

Yvert 28, 1936/7 10S. Santa Rosa de Lima, BLOCK OF 4 mint without gum, very fine quality, catalog value Euros 1,060. (Image)

Registered airmail cover franked by Yvert 28 (10S. Santa Rosa de Lima) + other values, sent from Lima to Paris on 12/AP/1937, VF, rare! (Image)

Yvert 61, 1938 10S. Crypt of the Heroes, 20 examples (blocks of 6 and 14) + 60 x12 + 53 x2, on a large registered airmail cover sent from Lima to Germany on 10/SE/1940, via Lufthansa, arrival backstamps, LARGEST KNOWN MULTIPLE, VF quality! (Image)

Yvert 62/64, 1938 Panamerican Congress, 4 stamps with little punch cancel and overprinted "WATERLOW & SONS LTD - SPECIMEN", VF quality! (Image)

Yvert 32/33, 1945 Congress of Engineers, 56 complete sets of 2 values, MNH, excellent quality! (Image)

Sc.C9, 1925 Gaucho and airplane, with VARIETY: "The 5 of the right value is touching the frame", on a cover flown from Montevideo to Rincón de las Gallinas, excellent quality, rare on cover! According to Sanabria, the value of this variety is 10 times the value of a normal example (US$175) (Image)