Stamps of Costa Rica, 10 perf
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1960, Aug 19 6th and 7th Chancellors' Reunion Conference, Organization of American States, San Jose issue unwmk p. 10 (6 stamps)
| - | 25c | multi | ||||
| - | 35c | multi | ||||
| - | 55c | multi | ||||
| - | 2col | multi | — | — | ||
| - | 5col | multi | ||||
| - | 10col | multi |
1969, Oct 29 50th Anniversary of ILO issue
| - | 35c | grnbl | ||||
| - | 50c | red |
1982, May 5 Costa Rican Progress issue (no wmk info) (8 stamps)
| - | 0.95col | multi | housing | — | — | |
| - | 1.15col | multi | Farmers fairs | — | — | |
| - | 1.45col | multi | Grade & high schools | — | — | |
| - | 1.65col | multi | National plan for drinking water | — | — | |
| - | 1.80col | multi | Rural medical care | — | — | |
| - | 1.80col | multi | Recreational areas | — | — | |
| - | 2.35col | multi | In front of the National Theatre | — | — | |
| - | 2.60col | multi | Dish Aerial | — | — |
postal tax
1965, Dec 10 1965 tax issue unwmk
| - | 5c | redbrn | ||||
| - | 5c | dkblgrn | ||||
| - | 5c | red | ||||
| - | 5c | ultra |
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