Viser nå: Costa Rica - Postfrimerker (1863 - 2023) - 7 frimerker.
11. August VM: Ingen Perforering: 13¼
24. September VM: Ingen Perforering: 10½
26. September VM: Ingen Perforering: 13¼
9. October VM: Ingen Perforering: 10½
10. November VM: Ingen Perforering: 10½