Cover with cachet "Souvenir of 42th survery expedition to Orcadas del Sur - January 1945", franked with 5c., sent from ISLAS ORCADAS to Villarica (Paraguay) on 5/FE/1945, with arrival backstamp, VF quality (Image)

Card franked with 20c., sent to La Plata from ISLAS ORCADAS DEL SUR on 5/MAR/1951, VF quality, very interesting patriotic text! (Image)

Postcard commemorating Alberdi, with datestamp of DECEPCIÓN Antarctic base (6/DE/1951), VF quality (Image)

Cover with datestamp of BAHÍA ESPERANZA Antarctic base (15/SE/1954), VF quality (Image)

Postcard with datestamp of SAN MARTÍN Antarctic base (16/SE/1955), VF quality (Image)

Card with datestamp of ESPERANZA Antarctic base (29/MAR/1957), VF quality (Image)

Cover with cancels of Islas Orcadas, Destac. Militar Esperanza, Destac. Naval Decepción, Base Conjunta Antártida Argentina and ship "ARA BAHÍA AGUIRRE", sent to B.Aires on 27/NO/1962, VF quality (Image)

Cover posted on 25/JA/1966 franked with $3.40, to Buenos Aires, with datestamp of ALTE.BROWN Antarctic base, VF quality (Image)

Letter with business-related text (Peso-pound rate exchange, the establishment of a "steam factory to make horse fat") sent to London on 19/MAR/1849, originating at the English Consulate in Buenos Aires, with hand-written due mark "3/2", carried on paquebot "Kestrel" to Rio de Janeiro, where it was transfered to the express mail that carried it to destination, with arrival backstamp (3/JUN/1849), VF quality (Image)

4c. Postal card sent to Buenos Aires on 31/OC/1881, with datestamp of DOLORES (Buenos Aires) and arrival mark (Image)

4c. Postal card sent to Buenos Aires on 23/FE/1882, with rectangular datestamp of ESTACIÓN CHAJARÍ (Entre Ríos) and arrival marks (Image)

4c. Postal card sent to Buenos Aires on 26/MAY/1884, with 2 datestamps of San Carlos (Santa Fe), one rectangular and one circular, also arrival and other marks, VF quality (Image)

4c. Postal card sent to Buenos Aires on 3/FE/1886, with datestamp of AZUL (Buenos Aires) and arrival marks (Image)

4c. Postal card sent to Buenos Aires on 12/FE/1886, with datestamp of CAÑADA DE GOMEZ (Santa Fe), with arrival and other marks (Image)

7 Fragments with cancels of traveling PO, VF quality (Image)

2c. Lettercard uprated with 7c. (total 9c.), sent from B.Aires to Germany on 9/JUN/1896 cancelled "BELGRANO", with due marks due to insufficient postage, VF (Image)

Wrapper posted on 13/AU/1896 with rectangular datestamp of "MATANZA" to Santa Fe. (Image)

Stationery envelope used on 15/AU/1898 with double circle datestamp of "LAPRIDA" (Santiago del Estero), to Buenos Aires, VF quality (Image)

Lettercard illustrated inside commemorating the visit of the president of Brazil, sent from MORON to Rosario on 26/OC/1900, VF quality (Image)

Stationery envelope posted in SE/1902 with postmark of "HINOJO" (Buenos Aires), VF quality (Image)

2 Illustrated postcards mailed on 12/JUL and 10/NO/1904 with postmark of "SAN YSIDRO", VF quality (Image)

5 Used fragments with postmarks of traveling PO (circa 1905), VF quality (Image)

ESTAF. AMB. CENTRAL A TIGRE, datestamp on fragment used on 24/JUN/1905, VF quality (Image)

Bank notice franked with 5c., sent to Temperley on 23/NO/1914, with cancel of "CAPITAN SARMIENTO" (B.A.), VF quality (Image)

Cover sent from CATAMARCA to Buenos Aires on 6/AP/1918, folded in the center (Image)