Stamps of Costa Rica, 4 base day
1 to 38 of 38
postage
1996, Oct 4 35th Anniversary of Aqueducts and Sewers issue unwmk (no perf info)
| - | 15col | multi |
2007, May 4 pre-Columbian art (5 stamps)
| - | 155col | multi | ||||
| - | 155col | multi | ||||
| - | 155col | multi | ||||
| - | 155col | multi | ||||
| - | 155col | multi |
2010, May 4 Railways in Costa Rica
| - | 200col | multi | ||||
| - | 200col | multi | ||||
| - | 200col | multi | ||||
| - | 200col | multi |
2012, May 4 125th Anniversary of the National Museum issue
| - | 395col | multi | ||||
| - | 395col | multi |
2015, Mar 4 Centenary of Chamber of Commerce of Costa Rica issue (no wmk info) p. 11
| - | 500col | multi | — | — |
2016, Apr 4 200th anniversary of Birth of Francisca Carrasco issue (no perf info)
| - | 2060col | multi | — | — |
2018, Apr 4 Fabián Dobles R. 100th issue p. 11
| - | 630col | multi | — | — |
2018, Apr 4 Joaquín Gutiérrez M. 100th issue
| - | 685col | multi | — | — |
airmail
1926, Jun 4 unwmk p. 12.5
| - | 20c | ultra | airplane |
1947, Jun 4 1947 air b issue (no perf info) (5 stamps)
| - | 15c | yelbrn | — | — | ||
| - | 15c | scar | — | — | ||
| - | 15c | blgrn | — | — | ||
| - | 15c | redorg | — | — | ||
| - | 15c | ltgrn | — | — |
1952, Mar 4 Queen Isabella 500th issue Columbus' ships & Queen Isabella (5 stamps)
1963, Dec 4 Archaeological Discoveries issue p. 12
| - | 5col | yelgrn & brn | ||||
| - | 10col | redpur & dkgrn |
1970, Nov 4 Costa Rican Paintings p. 12.75 (5 stamps)
| - | 25c | multi | Irazu (R. A. Garcia) | |||
| - | 45c | multi | Escazu Valley (M. Bertheau) | |||
| - | 80c | multi | Estuary Landscape | |||
| - | 1.00col | multi | The Other Face | |||
| - | 2.50col | multi | Madonna |
1977, Jul 4 400th Anniversary of Foundation of Esparza issue p. 10.75
| - | 0.35col | multi | Alonso de Anguciana de Gamboa | |||
| - | 0.75col | multi | ||||
| - | 1.00col | multi | ||||
| - | 2.00col | multi | Diego de Artieda y Chirino |
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