Stamps of Argentina, 20 base day
1 to 50 of 131
postage
1941, Feb 20 wmk. RA in sun p. 13.5x13
| X | 5c | dkgraybl & ltbl | French & Beruti |
1948, Sep 20 Agriculture Day issue wmk. RA in sun straight rays p. 13x13.5
| - | 10c | ltbrn |
1949, Jun 20 new constitution ratification issue unwmk p. 13.5x13
| X | 1p | red & redvio |
1954, Jan 20 Antarctic PO 50th issue (no perf info)
| - | 1.45p |
1959, Jun 20 Pope Pius XII death issue
| X | 1p | yel & blk | Pope Pius XII |
1960, Sep 20
| - | 1p | grn | Juan Bautista Alberdi | — | — |
1966, Apr 20 2nd Rio Plata Philatelists Day issue (6 stamps)
| - | 4p | ltgray & carbrn | — | — | ||
| - | 4p | ltgray & carbrn | imperf | — | — | |
| - | 5p | ltbl & yelgrn | — | — | ||
| - | 5p | ltbl & yelgrn | imperf | — | — | |
| - | 8p | — | — | |||
| - | 8p | imperf | — | — |
1967, May 20 Navy Day 1967 issue p. 13.5
| - | 20p | multi |
1967, Jun 20 3rd Rio Plata Philatelists Day issue imperf
| - | 6p | M. Belgrano | ||||
| - | 22p | J. G. de Artigas |
1968, Jul 20 100th Anniversary of the Guillermo Rawson Hospital issue (no perf info)
| - | 6p | olbrn | Guillermo Rawson & Old Hospital |
1971, Feb 20 5th Anniversary of the Argentine Expedition to the South Pole issue
| - | 20c | multi |
1975, Nov 20
| - | 30c | brnol |
1975, Dec 20 Tourist Attractions (1975)
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi |
1976, Nov 20 General Mosconi Petrochemical Project issue
| - | 28p | multi |
1976, Nov 20 Air Force Day 1976 issue
| - | 15p | multi |
1978, May 20 50th Anniversary of the Inter-American Children's Institute issue
| - | 100p | multi |
1978, May 20 Argentine Art issue - Argentine Art
| - | 100p | multi | ||||
| - | 100p | multi |
1978, Sep 20 200th Anniversary of General San Martin issue
| - | 2000p | blgrn |
1979, Jan 20 100th Anniversary of Argentine Membership in U.P.U issue p. 13.5
| - | 200p | multi |
1979, Jan 20 Celebrities 1979 issue - Celebrities (1979)
| - | 200p | multi | Adolfo Alsina | |||
| - | 200p | multi | Mariano Moreno |
1980, Mar 20
| - | 5000p | blk | Guillermo Brown |
1981, Jan 20 General Jose de San Martin issue (no perf info)
| - | 10000p | dkbl | José Francisco de San Martín |
1982, Mar 20 authors (1982)
| - | 1000p | multi | Francisco Luis Bernárdez | |||
| - | 2000p | multi | Lucio V. Mansilla | |||
| - | 3000p | multi | Conrado Nalé Roxlo | |||
| - | 4000p | multi | Victoria Ocampo |
1982, Nov 20 75th Anniversary of the Discovery of Oil in Comodoro Rivadavia issue p. 13.5
| - | 5000p | multi |
1982, Nov 20 100th Anniversary of the La Plata issue (8 stamps)
| - | 2500p | multi | ||||
| - | 2500p | multi | ||||
| - | 2500p | multi | ||||
| - | 2500p | multi | ||||
| - | 2500p | multi | ||||
| - | 2500p | multi | ||||
| - | 5000p | multi | ||||
| - | 5000p | multi |
1983, Aug 20 50th Anniversary of the San Martinian National Institute issue p. 13.75
| - | 2pa | purbrn & blk |
1983, Aug 20 200th Anniversary of the Birth of General Toribio de Luzuriaga issue
| - | 1pa | multi |
1986, Dec 20 p. 13.5
| - | 0.20a | multi | ||||
| - | 0.20a | multi |
1994, Aug 20 3rd Anniversary of the Provincial Status of Tierra del Fuego, Antarctica and South Atlantic Islands issue (no perf info)
| - | 75c | multi |
1 to 50 of 131