GJ.22, 16c. Belgrano, rouletted, block of 4, VF quality. Please note that the angle of the left overprints is DIFFERENT from those on the right! (Image)

GJ.26, 25c. Alvear, VF quality (Image)

GJ.29, 90c. Saavedra, VF quality (Image)

GJ.37, 5c. on cover used in Buenos Aires on 9/DE/1902 (Image)

GJ.42, 2c. Oficial, perf 11½x12¼, block of 4, VF (Image)

GJ.135, 2c. Plowman, M.G., Italian paper with horiz honeycomb wmk, perf 13¼x12½, block of 4, VF (Image)

GJ.149, 12c. San Martín, M.G., horiz honeycomb wmk, unused block of 4, without gum, VF (Image)

GJ.158, 1c. San Martín, "M.G." ovpt., with Wheatley Bond wmk, MNH (Image)

GJ.161, 12c. San Martín, "M.G." ovpt., with Wheatley Bond wmk, VF quality (Image)

GJ.168, 5c. First Pan-American Congress, M.G., block of 4, VF (Image)

GJ.170, 1c. San Martín, M.G., round sun wmk, block of 4, VF (Image)

GJ.174, 2c. San Martín with period, "M.G." ovpt., perf 13¼x12½, strip of 3, one with variety: Partial impression due to pre-printing foldover, VF (Image)

GJ.188, 30c. San Martín without period, M.G., unused block of 4, without gum, VF (Image)

GJ.197, 1P. San Martín, M.G., serif font, VF (Image)

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

GJ.237, 5c. San Martín, M.H., block of 4, 2 with Wheatley Bond wmk, VF (Image)

GJ.239, 1c. San Martín, M.H., with multiple suns wmk, block of 4, VF (Image)

GJ.250, 1c. San Martín with period, M.H., perf 13¼, block of 4, VF (Image)

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

GJ.289, 5c. Plowman, M.I., Italian paper with vertical honeycomb wmk, perf 13¼x12½, block of 4, VF (Image)

GJ.295, 5c. San Martín, M.I., vertical honeycomb wmk, block of 4, VF (Image)

GJ.303, 5c. 1st Pan-American Postal Congress, M.I., unused block of 4, without gum, VF (Image)

GJ.306, 20c. San Martín, M.I., round sun wmk, block of 4, VF (Image)

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

GJ.353a, 12c. Plowman, M.J.I., German paper with vertical honeycomb wmk, "M.I." with second added "I", typographed, VF (Image)