Muri Bhalissa: Kosta Rica - Bolol tal-posta (1990 - 1999) - 13 bolol.
2. July WM: Xejn Perforazzjoni: 10½
![[Fungi, Tip AOY]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AOY-s.jpg)
![[Fungi, Tip AOZ]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/AOZ-s.jpg)
9. July WM: Xejn Perforazzjoni: 10½
![[The 50th Anniversary of SOS Children's Villages, Tip APA]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APA-s.jpg)
21. September WM: Xejn Perforazzjoni: 13¾
![[The 50th Anniversary of National Electricity Corporation, Tip APC]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APC-s.jpg)
7. October WM: Xejn Perforazzjoni: 13¾
![[The 100th Anniversary of the Birth of Victor Sanabria Martinez (Archbishop of San Jose), 1899-1959, Tip APB]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APB-s.jpg)
29. October WM: Xejn Perforazzjoni: 13¼
![[International Year of the Elderly, Tip APD]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APD-s.jpg)
5. November WM: Xejn Perforazzjoni: 10½
![[The 50th Anniversary of Supreme Elections Tribunal, Tip APH]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APH-s.jpg)
1. December WM: Xejn Perforazzjoni: 11¼
![[The 125th Anniversary of Universal Postal Union, Tip APE]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APE-s.jpg)
1. December WM: Xejn Perforazzjoni: 13¼
![[America - A New Millennium without Arms, Tip APF]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APF-s.jpg)
![[America - A New Millennium without Arms, Tip APG]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APG-s.jpg)
1. December WM: Xejn Perforazzjoni: 13¼
![[Carmen Granados Death Commemoration, Tip API]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/API-s.jpg)
1. December WM: Xejn Perforazzjoni: 13¼
![[International Stamp Exhibition "Philexfrance 99" - Paris, France, Tip APJ]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APJ-s.jpg)
![[International Stamp Exhibition "Philexfrance 99" - Paris, France, Tip APK]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/APK-s.jpg)
