GJ.35/40, perf 11½, complete set, VF quality (Image)

GJ.37, 5c. Oficial, perf 11½, on cover sent from Buenos Aires to Puerto Militar on 15/JUN/1903, VF quality (Image)

GJ.175b, 5c. San Martín with period after the value, perf 13¼ x 12½, with double (one light) inverted "M.G." overprint, VF, uncatalogued variety, rare! (Image)

GJ.213/6, Próceres & Riquezas, "M.G." ovpt, typographed, cmpl. set of 4 values, VF (Image)

GJ.213a, 5c. Moreno with "M.G." ovpt, typographed, inverted overprint var., VF (Image)

GJ.214, 10c. Rivadavia type I, "M.G." ovpt., typographed, used, VF quality (Image)

GJ.247b, Ministry of Finance, sans-serif font, 5c. San Martín with period, perf 13¼ x 12½, with inverted overprint variety, VF quality (Image)

GJ.277, Ministry of Financy, serif font, 1P. Map with borders, with sheet margin, MNH, VF quality (Image)

GJ.277, 1P. Map with borders, "M.H." ovpt., VF quality (Image)

GJ.279/82, Próceres & Riquezas, "M.H." ovpt., typographed, cmpl. set of 4 values, VF (Image)

GJ.343, 1P. Map with borders, "M.I." ovpt., VF quality (Image)

GJ.434, 1c. Sarmiento, "M.J.I." ovpt., with offset impression of the overprint on back, block of 4, VF (Image)

GJ.436, 3c. Sarmiento, "M.J.I." ovpt., block of 4, with offset impression of the overprint on back, VF (Image)

GJ.436, 3c. Sarmiento, "M.J.I." ovpt., with offset impression of the overprint on back, VF (Image)

GJ.442a, 30c. Wool, "M.J.I" ovpt., with double overprint var. (one light), VF quality (Image)

GJ.505, Próceres & Riquezas, "M. M." ovpt., cmpl. set of 10 values, VF general quality (Image)

GJ.505, 1c. Sarmiento, "M. .M" variety, used, VF quality (Image)

GJ.525, Ministry of Public Works, sans-serif font, 5c. Centenary of Independence, used, VF quality (Image)

GJ.546, Ministry of Public Works, sans-serif font, 12c. San Martin w/o period, fine quality (Image)

GJ.558, Ministry of Public Works, serif font, 20c. San Martin typographed, "period inside the O" variety, mint no gum, VF quality, catalog value US$50+ (Image)

GJ.559a, 1c. Sarmiento, "M.O.P." ovpt., block of 4 with double overprint var. (one light), VF (Image)

GJ.562, 5c. Moreno, "M.O.P." ovpt., with offset impression of the overprint on back, VF (Image)

GJ.574, Ministry of Foreign and Religious Affairs, sans-serif font, Plowman 2c. with sun watermark, VF quality (Image)

GJ.631, 2c. Urquiza, "SERVICIO OFICIAL" ovpt., block of 4 proof in gray-chestnut, on special paper for specimens, without gum and unwatermarked, VF (Image)

GJ.648, 1P. Map without borders, "SERVICIO OFICIAL" ovpt., with double overprint var. (uncatalogued), VF quality (Image)