6 Covers all sent from different Antarctic bases to B.Aires, several with arrival marks (Image)

Cover commemorating the 1st Touristic trip to Antarctica of JA/1958, with marks of 3 different bases on back (Image)

Cover with mark of icebreaker ARA Gral. San Martín (Image)

Cover with postmark "BASE CONJUNTA ANTÁRTIDA ARGENTINA", sent to B.Aires on 27/OC/1961, arrival backstamp (Image)

Cover with illustrated cachet of icebreaker AR.A Gral. San Martín, sent from Esperanza Antarctic base to B.Aires on 9/JUL/1963, arrival backstamp (Image)

Cover sent from Gral. Belgrano Antarctic base to B.Aires on 4/JA/1964, it includes a cinderella with label for "10th anniversary of the Gral. San Martín base", arrival backstamp (Image)

Cover sent from Decepción Antarctic base to B.Aires on 25/JA/1964, arrival backstamp (Image)

3 Covers sent from different Antarctic bases to B.Aires during the 1964-1965 Antarctic campaign, all with arrival backstamps (Image)

Cover with datestamp of Gral. Belgrano Antarctic base, with the mark "10 DIC 1965 - OPERACIÓN 90 POLO SUR" (Image)

Cover with postmark of Matienzo Antarctica base for 2/FE/1965, and a number of marks, for example "1st rocket lauch in Antarctica", very nice (Image)

Cover of the 1967-1968 Antarctic campaign, with attractive handstamp of icebreaker Gral. San Martín (Image)

Postcard with map of Antarctica, sent fom Gral. Belgrano Antarctic base to B.Aires on 21/MAY/1968, arrival backstamp, very nice (Image)

Cover sent from Petrel Antarctic base to B.Aires on 9/DE/1968, arrival backstamp (Image)

Cover with marks of icebreaker ARA Gral. San Martin for 15/JA/1973, signed by officer, VF (Image)

Cover sent from PETREL Antarctic station to B.Aires on 12/DE/1975, arrival backstamp (Image)

Cover commemorating 7th cruise trip to Argentine Antarctica 1975/76, with datestamp of Brown station (Image)

INAUGURATION OF ANTARCTIC BASE: Cover sent from PRIMAVERA station to B.Aires on 8/MAR/1977, inauguration day, with arrival backstamp, excellent quality! (Image)

Cover with 2 different marks of Esperanza Antarctic station on front, on back: "80th anniversary of first Antarctic mail" 22/FE/1984 (Image)

Envelope with marks of Marambio base for 15/DE/1989 + "Correspondencia recibida de la Antártida" (Image)

7/FE/1992, Cover commemorating the 40th anniversary of first airmail to Argentine Antarctica, sent from B.Aires to Marambio base, VF quality (Image)

1996/7 ANTARCTIC CAMPAIGN: 3 covers with different postmarks (Image)

1997/8 ANTARCTIC CAMPAIGN: 2 covers with postmarks of different bases (Image)

1998/9 ANTARCTIC CAMPAIGN: 2 covers with postmarks of different bases, one signed (Image)

1999/2000 ANTARCTIC CAMPAIGN: 2 covers with postmarks of different bases, one signed (Image)

2000/1 ANTARCTIC CAMPAIGN: 5 covers with postmarks of different bases, one signed (Image)