1964-12-23: Pro childhood 1964

1964-12-19: Argentine Painters - 1964

1964-12-12: 50th Death Anniversary of Julio Argentino Roca (1843-1914)

1964-12-12: 50th Death Anniversary of Julio Argentino Roca (1843-1914)

1964-11-14: Joaquín V. González (1863-1923)

1964-11-14: Joaquín V. González (1863-1923)

1964-10-24: Day of the United Nations - Flying Pigeon

1964-10-24: Day of the United Nations - Flying Pigeon

1964-10-22: Stylized Aircraft

1964-10-10: Day of the Race - Columbus Day

1964-10-10: Day of the Race - Columbus Day

1964-09-19: Summer Olympic Games 1964 - Tokyo

1964-08-22: 350th Anniversary of "Universidad Nacional de Córdoba"

1964-08-22: 350th Anniversary of "Universidad Nacional de Córdoba"

1964-08: Personalities and Landscapes - Offset

1964-06-27: Pope John XXIII (1881-1963)

1964-06-27: Pope John XXIII (1881-1963)

1964-05-30: Army Day -1964

1964-05-23: U.P.U. - 15th World Post Congress, Vienna

1964-05-23: U.P.U. - 15th World Post Congress, Vienna

1964-05-09: 50th deathday of Pater Jose Gabriel Brochero (1840-1914)

1964-05-09: 50th deathday of Pater Jose Gabriel Brochero (1840-1914)

1964-04-14: John F. Kennedy (1917-1963)

1964-04-14: John F. Kennedy (1917-1963)

1964-02-29: 50 Years of death Jorge Newbery (1875-1914)

1964-02-29: 50 Years of death Jorge Newbery (1875-1914)

1964-02-22: Argentina in the Antarctic - 1964

1964-01-25: 4th Festival of Folk Song

1964-01-25: 4th Festival of Folk Song

1964: Official