GJ.857, 1942 30c. Stylized Airplane, corner block of 8 partially IMPERFORATE at top, excellent and very nice! (Image)

GJ.1162A, 1960 Partridge, printed on IMPORTED UNSURFACED PAPER (NOT national unsurfaced p. as normal), fantastic MNH block of 4, superb and rare. We include a block on normal paper for comparison, LOW START! (Image)

GJ.1294P, 1965 11P. Airplane landing in Antarctic station, IMPERFORATE BLOCK OF 4 + other 4 imperforate blocks (trial color proofs), very nice group! (Image)

GJ.16, 4R. green, wide margins, with rare cancel of unknown origin, possibly of Uruguay, excellent quality! (Image)

GJ.2, 10c. green, used in Rosario, very fine quality, signed by Alberto Solari on back (Image)

GJ.2BID, 10c. green diagonal bisect used as 5c., on fragment with FRANCA cancel of Río Cuarto, very fine quality, signed by Alberto Solari (Image)

GJ.3, 15c. blue, used in Córdoba, superb example, signed by Alberto Solari on back! (Image)

GJ.15, dark lilac, with variety "Flattened at top", the stamp is shorter than normal and the "CORRIENTES" letters are very short, mint original gum, VF quality, rare! (Image)

GJ.16, dull rose, type 4, with notable rectangular datestamp of CONCEPCIÓN (+100%), superb! (Image)

GJ.16, dull rose, type 2, extremely rare copy with ABSOLUTELY CLEAR impression (99% or more have from poor to very poor impression, blurred), possibly the most handsome example in existence!! With small defects on back, superb front! (Image)

GJ.38, with rare cancel, possibly of STEAMER APOLO, very fine quality! (Image)

GJ.38, franking a folded cover sent from SALTA to the "Coronel de Artillería del Ejército Nacional Gerónimo Espejo" in Buenos Aires on 7/MAY/1871, very fine quality! (Image)

RARE DIE ESSAY, circa 1888, image of Juan José Paso with printing number "420" made by the American Bank Note Co. of New York, unadopted design. View 1958 Kneitschel catalog, type II, page 625, very fine quality, very rare! (Image)

GJ.102, 1889 2c. Derqui, 2 die proofs printed on paper with glazed front, one in bright violet (FIRST state, groundwork of horizontal an vertical lines, not adopted and not catalogued by Kneitschel for this paper!) and the other one in redish lilac (second state, adopted), very fine quality, rare lot! (Image)

GJ.111a, 1889 12c. Alberdi printed on BLUISH PAPER, pair franking a cover sent from Buenos Aires to Madrid by steamer "Portugal", arrival backstamp, very fine quality! (Image)

GJ.114, 1889 60c. Posadas, die proof in bright carminish lilac, printed on thin paper affixed to card, very fine quality! (Image)

GJ.183, Belgrano 30c. orange franking alone a registered cover from CHACABUCO to Buenos Aires on 13/AU/1899, very fine quality! (Image)

GJ.183, Belgrano 30c. orange franking alone a registered cover from GANDARA to Buenos Aires on 4/DE/1899, very fine quality! (Image)

GJ.222, 1899 5c. Seated Liberty, 3 blocks of 4 and 3 blocks of 6, all used and with different cancels, some rare such as "EL CALDÉN (PAMPA CENTRAL)", very fine quality! (Image)

GJ.222, 5c. Liberty in block of 8 (total 40c.) franking a registered cover with AR sent from BELGRANO (MENDOZA) to Italy on 23/AU/1901, on back transit mark of B.Aires, with small faults but very rare origin! (Image)

TRAVELING PO CANCELS: 18 fragments of covers with stamps of 5c. Seated Liberty (GJ.222), all with cancels of railway PO, some rare, very fine quality! (Image)

GJ.323, 1911 Plowman 5c., typographed proofs printed by Casa de Moneda in strips of 5 with colored background, on paper, 5 sheets in different color, all with small handstamped "MUESTRA" control mark, excellent quality, rare lot! (Image)

GJ.457, corner block of 4, one with rare variety (defective impression) at bottom left, excellent! (Image)

GJ.463a, 1918 10c. San Martín, block of 4 with COMPLETE DOUBLE IMPRESSION variety, mint lightly hinged, very fine quality! (Image)

GJ.481, 1918 2c. San Martín, block of 18, 14 of them WITH W. Bond watermark (complete!), excellent quality! (Image)