Viser nå: Costa Rica - Postfrimerker (1990 - 1999) - 10 frimerker.
25. March VM: Ingen Perforering: 10½
24. May VM: Ingen Perforering: 10½
11. October VM: Ingen
11. October VM: Ingen Perforering: 13
21. October VM: Ingen
1. November VM: Ingen Perforering: 13¼