Ditunjukkan sekarang: Costa Rica - Setem-setem bayaran pos (1990 - 1999) - 12 Setem-setem.
March WM: Tiada Perforasi: 13¼
![[The 90th Anniversary of Rotary International, jenis AML]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AML-s.jpg)
June WM: Tiada Perforasi: 10½
![[Anniversaries, jenis AMM]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AMM-s.jpg)
![[Anniversaries, jenis AMN]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AMN-s.jpg)
| No. | Jenis | D | Warna | Deskripsi |
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| 1444 | AMM | 10Col | pelbagai warna | The 200th Anniversary of the Birth of Antonio Jose de Sucre (President of Bolivia, 1826-28) | 0.29 | - | 0.29 | - | USD |
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| 1445 | AMN | 30Col | pelbagai warna | The 100th Anniversary of the Death of Jose Marti (Poet and Cuban Revolutionar | 0.88 | - | 0.88 | - | USD |
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| 1444‑1445 | 1.17 | - | 1.17 | - | USD |
24. July WM: Tiada Perforasi: 13¼
![[The 50th Anniversary of Guanacaste Institute, jenis AMO]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AMO-s.jpg)
11. September WM: Tiada
![[Issue of 1993 Surcharged 5, jenis AMP]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AMP-s.jpg)
24. October WM: Tiada Perforasi: 10½
![[The 50th Anniversary of the United Nations, jenis AMQ]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AMQ-s.jpg)
1. December WM: Tiada Perforasi: 10½
![[The 13th National Stamp Exhibition - Seasonal Paintings by Lola Fernandez, jenis AMS]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AMS-s.jpg)
25. December WM: Tiada Perforasi: 13¼
![[America - Environmental Protection, jenis ]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/1451-b.jpg)
| No. | Jenis | D | Warna | Deskripsi |
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| 1451 | AMT | 30Col | pelbagai warna | Jabiru mycteria | 1.76 | - | 0.88 | - | USD |
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| 1452 | AMU | 40Col | pelbagai warna | 1.76 | - | 1.17 | - | USD |
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| 1453 | AMV | 40Col | pelbagai warna | 1.76 | - | 1.17 | - | USD |
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| 1454 | AMW | 50Col | pelbagai warna | Atta cephalotes | 1.76 | - | 1.76 | - | USD |
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| 1451‑1454 | Block of 4 | 17.57 | - | 11.72 | - | USD | |||||||||||
| 1451‑1454 | 7.04 | - | 4.98 | - | USD |
