RARE COVER WITH CLOTH SAMPLES: Entire letter sent from Salta to Buenos Aires on 28/SE/1819, with long and interesting text that includes fabric samples, VF! (Image)

Guide of mail sent from Tucumán to Córdoba on 22/JA/1833, VF quality! (Image)

Guide of mail sent from Santa Fe to Córdoba on 4/MAY/1833, VF quality! (Image)

Guide of mail sent from San Juan to Córdoba on 30/NO/1837, VF quality! (Image)

Guide of mail sent from Jujuy to Córdoba on 30/SE/1846, VF quality! (Image)

4c. Postal card sent to Buenos Aires on 14/MAR/1883, with very rectangular datestamp of CHASCOMÚS, excellent! (Image)

VERY RARE POSTAL MARK: 4c. Postal card sent from Rosario to Buenos Aires on 28/AP/1886, with violet oval mark "CORREO NACIONAL - BUZON 11" possibly of Rosario, VF quality! (Image)

4c. Postal card sent to Buenos Aires on 31/JA/1889, with extremely rare cancel of COLONIA IRIGOYEN (Santa Fe), excellent quality! (Image)

RARE POSTMARK: Certificate for services of a contractor that carried mail between Santiago del Estero and Loreto, Atamisqui, Salavina and Quebrachos, with cancel of OJO DE AGUA for 10/AP/1890 along postage of 5c. Sudamericana with violet oval cancel of Contaduría General de Santiago del Estero, VF, rare! (Image)

Certificate of a contractor of the Mail dated Paso de los Libres 1/MAR/1893, franked with 5c. (Rivadavia) with postmark of MERCEDES (Corrientes), VF quality, very rare! (Image)

RARE POSTMARK: Certificate for services of a contractor that carried mail to Corrientes, with stamps for 5c. (2c. + 3c. Rivadavia) with rectangular datestamp of SAN LUIS (Corrientes) 31/OC/1893 in blue, spectacular and very rare! (Image)

Certificate of stagecoach mail "Mensajería Provincial de los Departamentos del Oeste", with cancel of LA HIGUERA (Córdoba) for 9/OC/1895, VF quality! (Image)

RARE POSTMARK: Certificate for services of a contractor that carried mail from Córdoba to Cosme and Capilla de Rodriguez, with stamp of 5c. Seated Liberty, and datestamp of CAPILLA RODRIGUEZ - CORDOVA 31/OC/92 (error in the year!!) in blue, spectacular and very rare! (Image)

RARE POSTMARK: Certificate for services of a contractor that carried mail for the Post, with cancel of SALCACATE (Córdoba) 1/SE/1902, VF quality! (Image)

Registered cover sent to France on 12/SE/1904, franked with Seated Liberty 12c. + 30c., VF quality! (Image)

4c. "Kidd" lettercard sent to Austria, with German cancel of HAMBURG 5/DE/1906, official seal and datestamp of HAIDA (original destination), then forwarded to Neugarten, arrival mark of 8/DE, excellent quality, very rare! (Image)

Registered cover sent from SUCURSAL PUERTO in Santa Fe to France on 7/JUL/1910, with nice multicolor postage of 11 stamps of the Centenary issue, very attractive! (Image)

RARE POSTMARK: Certificate for services of a contractor that carried mail to Esquiú, with stamps 5c. Plowman + revenue stamp of 5c., and datestamp of RAMBLONES (Catamarca) 30/MAY/1913 in violet, spectacular and very rare! (Image)

Cover with printed matter sent to USA on 10/AP/1931, franked with block of 4 of ½c. + 1c. large format of 1930 Revolution, interesting 3c. rate, VF quality! (Image)

Airmail cover sent to Czechoslovakia on 28/AU/1931 franked with 1.74c., with an interesting cinderella of glass company VITREA on back, very nice! (Image)

4c. San Martín postal card with view of Map of South America and Argentina, and inside statistical data of the country, sent to Uruguay on 1/OC/1934 by registered mail, uprated with 25c., with arrival mark of the following day. Excellent quality, genuinely used cards of this type are very rare, and much more by registered mail! (Image)

Airmail cover sent from ORAN to Switzerland on 31/MAY/1935 with postage of 1.15P. (10c. San Martín + 7x 15c. Visit of Getulio Vargas, 2 with "SIX FINGERS" variety, GJ.734a), rare postage, VF quality! (Image)

Rare POSTAL ID card of 28/MAY/1936, with stamps for 45c. to pay the corresponding fee, excellent quality, very rare! (Image)

MIXED POSTAGE: PC sent from Hungary to "Poste Restante" in Buenos Aires with Hungarian postage of 20f., when it was delivered on 24/AU/1939 it received a 10c. Rivadavia chalky paper stamp to pay for the service, VF quality! (Image)

Airmail cover sent from Buenos Aires to Denmark on 15/AP/1940, with nice franking of 2.70P., VF quality! (Image)