MAIL SENT FROM SOUTH POLE TO NORTH POLE: Cover sent from Orcadas Base to Jan Mayen (Norway) on 8/OC/1963, with transit mark of Ushuaia (25/FE/1964), and arrival of 25/JUN/64. It was returned to sender, via Bodo (transit mark 27/JUN), VF, rare! (Image)

Entire letter sent from SANTIAGO DEL ESTERO to Buenos Aires on 8/MAR/1848 without postal markings, inscribed "Viva la Confederación Argentina", fine quality, interesting! (Image)

Folded cover used in 1840s (genuine), with a FORGED straightline pre-stamp mark "CONCEPCION DE CORDOBA" in black, produced by Abarca in 1960/70 on genuine covers that he obtained from old archives. For a time he managed to deceive Victor Kneitschel, who after descovering the forgery, published a chapter dedicated to these forgeries in his specialized catalog of 1974. Very interesting for study and comparison, good opportunity at low start! (Image)

Entire letter sent from TULUMBA to Buenos Aires on 11/MAR/1851 without postal markings, inscribed "Viva la Confederación Argentina", fine quality, interesting! (Image)

9 Postal stationeries used between 1887 and 1924, several with additional postages, and almost all sent abroad, wide range of cancels, nice group! (Image)

3 Covers sent to Argentina in 1892 (from USA), 1906 (from France) and 1923 (from Great Britain), ALL WITH VARIED POSTAGE DUE MARKS, very fine quality, very interesting! (Image)

Cover franked by GJ.136 pair, with oval BARRACAS AL SUD cancel (rare!!), sent to Buenos Aires on 12/OC/1892 (FDI), very nice! (Image)

30/OC/1892 TUCUMÁN - Buenos Aires, 5c. stationery envelope uprated with 36c. (total 41c.!!) sent by registered mail, arrival backstamp, excellent quality! (Image)

6 Covers used between 1894 and 1899, several registered, almost all sent overseas, with varied frankings of 12c., 22c., 24c., 36c. and 40c., very fine general quality, interesting group! (Image)

Registered cover sent from Buenos Aires (Sucursal Bolsa de Comercio) to Switzerland on 7/OC/1895 with 36c., with transit and arrival backstamps, handsome! (Image)

5c. Stationery envelope + additional postage (total 20c.), sent from Buenos Aires to PEGUAHÓ (Corrientes) on 24/MAR/1897. By mistake it was sent to PEHUAJÓ in the province of Buenos Aires (backstamp 25/MAR), it was returned to Buenos Aires on 26/MAR and with CORRIENTES transit mark of 27/MAR, VF quality! (Image)

5/JA/1899 Buenos Aires - Portugal - Germany, registered cover franked by GJ.181 in strip of 3 (48c.), sent from Sucursal Lorea to Halle, on back transit mark of Lisboa 25/JA and arrival, excellent quality! (Image)

Registered 5c. stationery envelope + 30c. Seated Liberty, sent from Mercedes to Buenos Aires on 24/NO/1899, on back it bears an interesting text by the postman: "Recibida con el cierre (?) un poco abierto y sucio, pesa 27 gramos" (Image)

Circa 1903, postcard used in Buenos Aires franked with 2c. Seated Liberty, with an extremely rare violet postmark: "CORREO Y TELÉGRAFOS - INSPECTOR - REPUBLICA ARGENTINA", very few known examples! (Image)

Cover sent to Buenos Aires by express mail, franked with 60c. and with extremey rare postmark of SAN BERNARDO DE LAS ZORRAS (Salta) 9/FE/1945, very nice! (Image)

2 Covers sent from TREBINJE to Argentina in 1893 and 1901 franked with 10h. and 20h. respectively, both with DUE MARKS applied on arrival, very interesting! (Image)

Airmail cover franked with 26.75Fr. (Sc.213 + other values), sent from Antwerpen to Rio de Janeiro (Brazil) on 12/JUN/1931, VF and attractive! (Image)

Entire letter sent from Rio de Janeiro to France on 22/NO/1871 by British Mail, with London transit backstamp and other good marks applied on front and back, VF quality! (Image)

Fragment of cover franked with 100Rs. rouletted and mute cancel of Sao Paulo, VF! (Image)

Postcard (Sao Paulo: Rua Florencio de Abreu) franked with strip of 5 of 20Rs. and sent to Montevideo on 17/JUL/1904, VF! (Image)

Newspaper sent by mail from Porto Alegre to Aracajú on 1/SE/1917 franked with 10Rs. (rate for printed matter), VF quality! (Image)

2c. Illustrated postal card (Customs docks, Montevideo) uprated with 2c., sent from Uruguay to Rio de Janeiro on 18/MAY/1922, with due marks and postage due stamps for 160Rs. applied at destination, rare! (Image)

Cover with fantastic printed advertising: DRUG STORE, PERFUMERY, etc., sent from Campinas to Switzerland on 10/DE/1924, VF! (Image)

Airmail cover flown by VARIG from Pelotas to Santa Cruz on 21/FE/1931, franked by RHM.V-4 + V-13, value of the stamps as used 790Rs., VF quality! (Image)

Airmail cover with samples without values sent from PARANAGUA to Porto Alegre on 22/AP/1932, nice postage! (Image)