5 Covers of the years 1961 to 1971, very attractive! (Image)

Cover commemorating the visit to Buenos Aires of the "Lindblad travel tourist expedition 1970", signed by Eric Linblad and other members of the crew, with Argentine franking of 6P. and Buenos Aires cancel for 24/JA/1970, excellent! (Image)

Map of Argentine Antarctica with a couple of stamps with postmarks of "Destacamento Naval Melchior 3/JA/1949" and "Destacamento Naval Decepción 25/JA", also with the signatures of several members of the staff of both bases, very attractive! (Image)

Large cover franked with 8 pairs + single of 12c. Mitre with different cancels of various Argentine Antarctic bases + Orcadas, between 15/JA/1952 and 3/JA/1956, very attractive! (Image)

RARE CANCEL: Cover postmarked "BAHÍA LUNA - ANTARTIDA ARGENTINA" 5/DE/1954, very fine quality, rare! (Image)

Envelope of the "Secretario de Estado de Guerra" (Secretary of State for War) with varied stamps and marks of different Antarctic bases and expeditions, including "Operación Polo Sur" of 10/DE/1965, also postage stamp of USA cancelled "Pole Station Antarctica", very attractive! (Image)

14 Modern covers with postmarks of different Antarctic bases, all different and of excellent quality, one signed, good opportunity! (Image)

14 Modern covers with postmarks of different Antarctic bases, all different and of excellent quality, some signed, good opportunity! (Image)

3 Covers of the years 1977/8 with interesting markings, all bearing on back arrival mark of Santiago and one transit of Diego Portales, very nice! (Image)

4 Covers of the years 1963 and 1971, all signed by authorities, VF quality! (Image)

4 Covers of the years 1966 and 1971, very nice! (Image)

9 Covers of the years 1956 to 1973, some signed, very fine quality! ATTENTION: please view ALL the photos of the lot, because all the pieces have been scanned (both sides) (Image)

25/JUN/1846 Buenos Aires - Baltimore (USA), entire letter with very interesting text about fluvial trade between Buenos Aires, Entre Ríos, Corrientes and Montevideo, burnt ships, pricing issues, blockades, political considerations, etc. With arrival mark of New York 28/AU and 7c. postage due, excellent quality! (Image)

Small cover franked by GJ.37 (5c. Rivadavia with groundwork of horizontal lines), sent from B.Aires to San Juan on 13/DE/1868, with Rosario transit backstamp, VF! (Image)

Complete newspaper published in Mercedes and sent to 25 de Mayo on 2/NO/1883 franked with 1c. Little Envelope (GJ.62), with rare rectangular cancel: "EST. AMB. 6 - F.C.O. (B.A.)", VF quality! (Image)

11 Covers or postal stationeries posted between 1886 and 1918, varied and interesting postages, some with defects, good opportunity at a low start! (Image)

5c. Stationery envelope + GJ.133/4, used in Buenos Aires on 27/SE/1891, very nice! (Image)

RARE DESTINATION: Double postal card of 6c. + 6c. (with the paid reply attached, unused) sent from Buenos Aires to ST. PIERRE ET MIQUELON on 20/JA/1893, with transit marks of New York and Boston, very fine quality, rare! (Image)

Cover sent from Buenos Aires to San Juan on 13/JUN/1894 franked with 5c. (GJ.141), VF quality! (Image)

Second page of a PO box payment card (abono) franked with $6 (GJ.148+151) with cancellation of 1894, VF, rare! (Image)

Cover with advertising corner card (TOBACCO steam factory, on back: "Favoritos" CIGARETTES), franked with 2c. and sent from Buenos Aires to San Luis in MAY/1897 and from there forwarded to San Juan. On back it bears an interesting small circular mark "ESTAFETA SANTANTAL - SAN LUIS" + other marks, excellent quality! (Image)

Cover posted to San Juan on 19/OC/1898 franked with 5c., with rectangular datestamp of CONCEPCIÓN (Tucumán), excellent quality! (Image)

Registered cover sent from TUCUMÁN to San Juan on 11/JUN/1900 franked with 30c. Liberty (GJ.231), upon arrival it received a double circle datestamp of 14/JUN and another one with hand-written date, excellent! (Image)

Cover with fantastic advertising ("Pampero" sulky), franked with 10c. Liberty, sent from Buenos Aires to San Juan on 5/SE/1900, excellent! (Image)

4 Postcards sent to Paris in 1903/4, 2 with octagonal marks of French paquebot, and 3 with French postage due stamps, nice lot! (Image)