Front of an official folded cover sent to Santiago de Chile (circa 1772), with the GJ.BUE 2 mark perfectly applied in black, excellent quality, rare! (Image)

Front of folded cover sent to the Governor of Buenos Aires JUAN MANUEL DE ROSAS, with manuscript "Viva la Confederación Argentina - mueran los salvajes Unitarios" and the marks JUJ 4 and JUJ 5 very well applied in claret color, excellent! (Image)

Entire letter with interesting and long text sent to Buenos on 30/DE/1817, with "2" rating in pen along the mark MENDOSA (GJ.MEN 2) perfectly applied in rust red, superb! (Image)