1828 folded letter to London and 1843 patriotic folded letter from Salta to Buneos Aires, the former dated August 16 showing "Buneos/Ayres." two-line handstamp in red (Tizón-Guinovart 4), rated "3" on dispatch and "3/6" on arrival, with British c.d.s. on reverse; the latter endorsed "Viva la Confn. Argna.!/Mueran los Salvags. Units.!", with red "Salta" straight-line handstamp, rated "3" and "6"; a fine and unusual duo. (Image)

Est. $200-300

Buenos Aires, Kn #5; GJ #5; 1858 2p ("Dos") Blue, outstandingly neat impression, cut a bit into at right, otherwise outstandingly large margins on other three sides showing portions of four adjoining adhesives, cancelled by "ponchito" handstamp on cover from Tucumáan, carried on a portion of its jopurney along Paraná river as denoted by the "P Syrce" ship endorsement at top left, with "Correos de Buenos Aires/19 Oct 58" datestamp in center; stamp lifted for examination and hinged back in place. (Image)

Est. $200-250

Buenos Aires, Kn #6; GJ #16; 1858 3p ("Tres") Green, a very fresh example with mostly large margins, the left resulting nearly complete and at base being slightly cut into, tied to piece by "ponchito" cancel, with matching "Renta de Correos/San Nicolás" oval handstamp at right, both in blue; the stamp has been lifted for examination and hinged back in place; ex-Frapolli. (Image)

Est. $400-500

Buenos Aires, Kn #7; GJ #7; 1858 4p ("Cuato") vermilion, a fresh example in a delicate shade with most part of the bottom frame missing, clear to ample margins in other respects, cancelled by bold strike of "ponchito" cancel, a very rare sound example of this difficult stamp of which only about 180 are believed to exist (GJ $4,500). (Image)

Est. $1,000-1,500

Buenos Aires, Kn #10; GJ #10; 1858 1p ("In") Light brown, just touching at left, complete to large margins in other respects, tied to piece by "ponchito" cancel, fine (GJ $300). (Image)

Est. $100-150