British Post Office 1855 (Aug 1): Entire letter from Buenos Aires to Cadiz, endorsed 'pr. Canarias' at top, struck with 'Buenos-Ayres' British P.O. cds on reverse (Aug 2) and, on front by fine strike of "PAID AT BUENOS AYRES" Crown Circle handstamp in black with manuscript prepayment '1/-' in red ink at left. Disinfected by slits and reverse with 'Santa Cruz de Canarias' cds (Sept 4) in red and charged wih circular '4R' in same ink, Cadiz arrival cds (Sept 28) and charged at '8R' due in blue. A fine and attractive entire Scott = $ 900. (Image 1) (Image 2) (Image)

Mensagerias 1858 (June 19): Entire letter from Buenos Aires to Rosario struck with exceptional SUCURSAL DE LE ESTAFETA GENERAL DE BUENOS AYRES / FRANCA / 1857 negative handstamp in blue. Exceptional and scarce entire. (Image 1) (Image)

Mensagerais 1862: Cover to Calle Belgrano, Buenos Aires struck with circular NS. PENINSULARES / POTOSI 152 / TORRES BERGEIRE Y CA cachet in blue dated 21 July 1862. One or two wrinkles but scarce. (Image 1) (Image)

1869 (Oct 14): Cover from Buenos Aires to Asendorf, Hannover via Bordeaux, struck with octagonal BUENOS-AYRES Consular marking in black (Salles fig. 1058) and carried on the "Aunis" to Montevideo. Fine strike of framed "F.48" Prussian Convention Accountancy marking in black (Salles 3188, Van Der Linden fig. 1184) applied in Paris. Reverse with Paris cds, Aachen transit and Asendorf arrival both in blue (Nov 18). Some wear but a scarce cover.rnrnProvenance: Collection Bernard Berkinshaw-Smith, Corinphila sale 145, April 2006, lot 3119. (Image 1) (Image 2) (Image)

1870 (Jan 30): Entire letter from Buenos Aires to New York via London, carried on the Maiden Voyage of the "Amazone" on this line and struck with octagonal 'BUENOS AYRES / PAQ. FR. J. No. 3' in black (Salles 1072d/3) - First day of Use of this Cachet D'Escale. Thence via London (March 1) where struck with Anglo French "FR./2F 20c" Accountancy marking (Salles 3102, Van Der Linden fig. 1264) in black. New York arrival on reverse (March 15). A fine entire.rnrnProvenance: Collection Bernard Berkinshaw-Smith, Corinphila sale 145, April 2006, lot 3121. (Image 1) (Image 2) (Image)

Confederation 1858 (May 1): 5 c. red, a used example with clear to good margins all round, tied to 1861 entire letter from Salta to Calama, Bolivia addressed "Para remitir al Sr. D. Carlos Giarme - Atacama", tied by framed "SALTA / FRANCA" handstamp in black. Reverse with "POTOSI" transit handstamp in blue. Ink date by previous collector at upper right. A very scarce destination for Confederation mail. Cert. Jorge del Mazo (2010).rnrnProvenance: Investphila, Lugano, 10 June 2011, lot 6. (Image 1) (Image 2) (Image)

Confederation 1858 (May 1): 5 c. red, a used example with large margins and touched at lower right with slight scissor cut, tied to 1860 cover from Corrientes to Buenos Aires by concave "CORRIENTES" handstamp in black. Manuscript receipt / reply notation inside dated July 26, 1860. (Image 1) (Image)

Confederation 1858: 5 c. red and 10 c. green, used examples on circa May 20, 1859 triple rate cover from Rosario to Tucuman, clear to large margins all round, the 5 c. imperceptibly touched at lower left, tied by oval framed "CORREO NACIONAL / FRANCA / DEL ROSARIO" handstamp in black. A rare and most attractive franking. Cert. Del Mazo (2010).rnrnProvenance: Investphila, Lugano, 10 June 2011, lot 10. (Image 1) (Image 2) (Image)

Confederation 1858 (May 1): 15 c. dark blue, Plate B, an unused block of thirty six (9 x 4) in a deep rich shade, positions 10-18 / 19-27 / 28-36 / 37-45, with position 27 showing some doubling to the NE outer corner; and first, third and sixth stamps in each row with "." between "EN" of "CENTAV.". Huge margins on three sides and clear to ample at base, two insignificant creases do not affect the superb and fresh appearance, large part or unmounted og. A rare and most appealing multiple Gi 3a = £ 3'600+/Jalil 3Aa = $ 12'000 as four strips of nine types/ Scott = $ 12'000. (Image 1) (Image 2) (Image)

1863: Escuditos 5 c. rose without accent, an unused complete sheet of 70 subjects (7 x 10), large sheet margins all round, tiny 3 mm. closed tear in margin only at lower right, fresh and very fine. Note the Plate flaws on positions 11 and 56 with white spots above the 'L' of Republica', incomplete 'L' on position 3 etc. A delightful and very rare sheet in the foremost quality Gi 10 = £ 1'120+/Scott = $ 1'400+. (Image 1) (Image 2) (Image)

1862 (Jan 11): Escuditos 15 c. blue, a fine used example with good margins all round, tied to small piece by complete "CORDOBA / FRANCA" handstamp in black. Exceptional and very scarce so fine. (Image 1) (Image 2) (Image)

1863: Escuditos 5 c. deep rose, a used example with large margins all round in a rich shade, tied to 1863 entire letter to Buenos Aires tied by framed "Correo Nacional / del / Rosario" handstamp with Rosario cds at right (Aug 24). A fine and attractive entire Scott = $ 250. (Image 1) (Image)

1862/63: Escuditos 5 c. rose, no accent, a used example with large even margins all round, tied to January 1864 cover from Buenos Aires to Rosario by superb strike of barred "O.M." obliterator (Oficina Maritima) in blue. Delightful and very scarce. (Image 1) (Image)

1864/67: 5 c. brown-rose, wmk. RA, fine impression, a used example with large margins all round, lightly cancelled by lozenge of dots in black. Rare Gi 13 = £ 170/Scott = $ 250. (Image 1) (Image 2) (Image)

1864/67: Rivadavia 5 c. green, imperforate, wmk. RA, a used example of rich colour, large margins all round, lightly cancelled in black. A truly magnificent example of this rare stamp. Signed Bühler Gi 14 = £ 1'300/Scott = $ 1'750. (Image 1) (Image 2) (Image)

1864/65: Rivadavia 15 c. blue, wmk. 'RA', perf. 11½, two examples used on 1865 registered cover form Buenos Aires to Cordoba, tied by oval of dots handstamps in black. Circular "CORREOS DE BUENOS AIRES" datestamp alongside (Aug 13) and two strikes of italic "Certificado" adjacent. Some minor file folds but a scarce and most attractive usage.rnrnProvenance: Collection Dr. Cruz, Alicante. (Image 1) (Image)

1867/72: Rivadavia 5 c. carmine, imperforate, no wmk., a used example with good to large margins all round in a somewhat oily impression, neatly tied to small piece by complete strike of "G" in bars obliterator of Gualeguachu. (Image 1) (Image 2) (Image)

1867/72: Rivadavia 5 c. rose-red, no wmk., imperforate on thin smooth paper, a used horizontal pair, ample to large margins all round, printed from an oily plate leaving a doubling impression, lightly cancelled in black. Scarce. (Image 1) (Image)

1867: Rivadavia 15 c. deep blue, no wmk., on thin smooth paper, an unused example with large generous margins all round, of lovely rich colour, fresh and very fine unused. A splendid and rare stamp Scott = $ 3'000. (Image 1) (Image 2) (Image)

1867: Rivadavia 5 c. rose-carmine, perf. 11½ on unwatermarked paper, a fine example used on December 8, 1867 entire letter (endorsed internally 'pr. Esmeralda') from Bella Vista (Corrientes) to Buenos Aires, tied on arrival by oval of dots handstamp in black. Slight aging at top of adhesive but a scarce and unusual usage. (Image 1) (Image)

1867: Belgrano 10 c. green, perf. 12, a single example used on second page of Sept 13, 1873 entire to London endorsed 'pr. RMS Neva'. Charged on arrival with London Foreign Branch datestamp in black and '1 s.' in manuscript to pay. London cds in red on reverse (Oct 16) of an attractive cover. (Image 1) (Image 2) (Image)

1868: 5 c. red, a used example tied to 1876 cover to Genova, tied by 'Buenos Aires' cds in black (May 30), with early usage of triangular 'T' marking and struck with "80" in blue alongside PLATA / MARSEILLE datestamp in red (June 17). Taxed on arrival with "14" centesimi charge marking in black and corresponding 1870 Postage Due 40 c. and 1 lire tied by 'Genova' cds (June 19). A fine and most attractive cover. (Image 1) (Image 2) (Image)

1867/68: Rivadavia 5 c. red and San Martin 15 c. blue (2), horizontal lines, tied to 1871 registered cover to Santa Fê by segmented cork handstamps in black with 'Buenos Ayres' cds at left (April 6). Three strikes of italic "Certificado" in black and reverse and inside of cover signed for upon receipt by the addressee. The lower stamp with horizontal tear at base but an attractive usage. (Image 1) (Image 2) (Image)

1877 (Feb): Provisional 1 c. on 1868 5 c. vermilion, crossed lines, used on Printed Matter entire letter (the contents being a 'Revista de Frutos del Pais') mailed from Rosario to San Juan tied by "Rosario" circular datestamp in black (April 15). An immensely rare single franking and much under-catalogued and under appreciated as a single franking, this being the first example this describer has handled. A wonderful and rare entire in the foremost quality. (Image 1) (Image)

1877 (Feb): 2 c. on 5 c. vermilion, an unused block of four of good fresh colour, large part og. Perforation holes still present on much of the block, an extremely scarce stamp in a multiple Gi 38 = £ 380+/Scott = $ 500+, (Image 1) (Image 2) (Image)