1949-11-19: 75th Anniversary of Universal Postal Union (U.P.U.)

1949-06-20: Ratification of the constitution of 1949

1949-06-20: Ratification of the constitution of 1949

1949-05: Official

1949-05: Famous Argentinians - Wmk straight rays sun RA

1949-04: Country Products

1949-04: Famous Argentinians - Typo

1949-03-01: 1st Anniversary of the Nationalization of the Railways

1949-03-01: 1st Anniversary of the Nationalization of the Railways

1949-02-01: Air Mail

1949-02: Famous Argentinians - Wmk round sun RA

1949-01-18: Pan-American Congress of Cartography

1949: Transfer of the Urns of the San Martín's Parents from Spain

1949: Youth Crusade for World Peace

1949: Transfer of the Urns of the San Martín's Parents from Spain