GJ.36, 4c. Moreno, pen cancelled, rare! (Image)

GJ.36, 4c. Moreno, MUESTRA overprint, unused without gum, VF (Image)

GJ.37, 5c. Rivadavia, groundwork of horizontal lines, with mute 'ellipse of 9 bars' cancel of Corrientes, VF quality (Image)

GJ.37, 5c. Rivadavia, groundwork of horizontal lines, used, VF quality (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, unused and without gum, VF (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, with diamond 'B' carteria cancel almost complete, VF quality (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, with circular 'PLAZA DEL PARQUE' cancel type III in blue, VF quality (Image)

GJ.38, 5c. Rivadavia, groundwork of crossed lines, with wreathed ellipse 'CONCORDIA' cancel in blue-green, on fragment (Image)

GJ.39, 10c. Belgrano, VF (Image)

GJ.40, 15c. San Martín, groundwork of crossed lines, hinged (Image)

GJ.40/41, 15c. San Martín, 3 examples, with groundwork of crossed lines, a transition groundwork and of horizontal lines, used, VF quality (Image)

GJ.41, 15c. San Martin, groundwork of horizontal ines, mint with part gum, VF quality (Image)

GJ.42, 30c. Alvear, VF quality (Image)

GJ.42, 30c. Alvear, hinged (Image)

GJ.160, 60c. Posadas, VF (Image)

GJ.44, 90P. Saavedra, with "MUESTRA" ovpt., unused, without gum, VF (Image)

GJ.44, 90c. Saavedra, VF quality (Image)

GJ.44, 90c. Saavedra, VF quality (Image)

GJ.45/7, provisionals, cmpl. set of 3 values, used, VF quality (Image)

GJ.45, 1c. on 5c. provisional, used, VF quality (Image)

GJ.48/52, Próceres, rouletted, cmpl. set of 5 values, VF quality (Image)

GJ.50, 16c. Belgrano, rouletted, used block of 6, VF (Image)

GJ.51, 20c. Vélez Sársfield, rouletted, with "MUESTRA" ovpt., sheet margin, VF (Image)

GJ.53 + 53A, 2c. Vicente López, green (19.9x24.9 mm) and yellowish green (19.8x25.3 mm), VF quality (Image)

GJ.54, 8c. Rivadavia, type I, VF (Image)