| 24 October 1961 - United Nations Day |
FAO |
| WHO |
| ILO |
| ITU |
| WMO |
| UNESCO |
| ICAO |
| United Nations |
| IBRD |
| 12 September 1962 - Central American Philatelic Convention Overprints |
#C324 |
| #C282 |
| 23 December 1965 - John F. Kennedy |
Kennedy / Friendship 7 |
| Kennedy At Podium |
| Kennedy / Son |
| Eternal Flame |
| souvenir sheet of 2 |
| 22 October 1970 - EXPO ‘70 |
Floral Arrangement |
| Cart |
| Pavilion |
| Tea Ceremony |
| Coffee Picker |
| Earthrise |
| 9 October 1975 - International Womens’ Year |
Venus Symbol 40c |
| Venus Symbol 1.25col |
| 10 March 1980 - Remote Sensing |
Satellite View of Puerto Limon |
| Satellite View of Gulf of Nicoya |
| 18 May 1981 - World Telecommunications Day |
ITU Insignia 5col |
| ITU Insignia 25col |
| circa 1982 - National Progress |
Housing |
| Agriculture |
| Education |
| Drinking Water |
| Rural Medicine |
| Recreation |
| Theater |
| Communications |
| Railroad |
| Irrigation |
| 17 July 1992 - Total Solar Eclipse: 17 July 1992 |
strip of 3 |
| Totality |
| Post Office / Eclipse |
| Partial Phase |
| 25 November 1993 - Telecommunications Institute |
Satellite Dish |
| 15 June 2003 - Dr. Franklin Chang-Díaz |
pair |
| Chang-Díaz / ISS (left half) |
| ISS (right half) / Beetle |
| 1 December 2003 - Postal Tax 2003 |
Children Pointing At Star |
| circa 2004 - Postal Tax 2004 |
Star / Magi |
| circa 2007 - Plasma Technology |
 Franklin Chang-Díaz Spacewalking During STS-111 |
| Ad Astra Plasma Technology |
| souvenir sheet of 4 (2 of each design) + label |
