Muri Bhalissa: Kosta Rica - Bolol tal-posta (1990 - 1999) - 15 bolol.
27. February WM: Xejn Perforazzjoni: 10½
![[The 100th Anniversary of National Theatre, Tip AJR]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJR-s.jpg)
1. June WM: Xejn Perforazzjoni: 10½
![[Football World Cup - Italy, Tip AJS]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJS-s.jpg)
24. August WM: Xejn Perforazzjoni: 10½
![[The 50th Anniversary of University of Costa Rica, Tip AJT]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJT-s.jpg)
31. October WM: Xejn Perforazzjoni: 12½
![[Patriotic Symbols, Tip AJU]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJU-s.jpg)
![[Patriotic Symbols, Tip AJV]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJV-s.jpg)
![[Patriotic Symbols, Tip AJW]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJW-s.jpg)
5. November WM: Xejn
![[Airmail - Issue of 1989 Overprinted "LEY 7097 CORREO AEREO", Tip AJX]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJX-s.jpg)
16. November WM: Xejn Perforazzjoni: 10½
![[Costa Rican Coffee, Tip AJY]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJY-s.jpg)
6. December WM: Xejn Perforazzjoni: 10½
![[The 150th Anniversary of the Penny Black, Tip AJZ]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AJZ-s.jpg)
18. December WM: Xejn Perforazzjoni: 12¾
![[The 100th Anniversaries of Hospitals, Tip AKA]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AKA-s.jpg)
![[The 100th Anniversaries of Hospitals, Tip AKB]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AKB-s.jpg)
21. December WM: Xejn Perforazzjoni: 10½
![[America - The Natural World, Tip AKC]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AKC-s.jpg)
![[America - The Natural World, Tip AKD]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AKD-s.jpg)
![[America - The Natural World, Tip AKE]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AKE-s.jpg)
![[America - The Natural World, Tip AKF]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AKF-s.jpg)
| Le. | Tip | D | Kulur | Deskrizzjoni |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1381 | AKC | 18Col | multi kkulurita | Ara macao | 4.65 | - | 0.29 | - | USD |
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| 1382 | AKD | 18Col | multi kkulurita | Ara ambigua | 4.65 | - | 0.29 | - | USD |
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| 1383 | AKE | 24Col | multi kkulurita | Tabebuia ochracea | 1.16 | - | 0.29 | - | USD |
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| 1384 | AKF | 24Col | multi kkulurita | Cassia grandis | 1.16 | - | 0.29 | - | USD |
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| 1381‑1384 | 11.62 | - | 1.16 | - | USD |
