Viser nå: Costa Rica - Postfrimerker (1863 - 2023) - 14 frimerker.
29. January VM: Ingen Perforering: 10½
15. March VM: Ingen Perforering: 13¼
26. March VM: Ingen
17. May VM: Ingen Perforering: 10½
28. May VM: Ingen Perforering: 13¼
15. July VM: Ingen Perforering: 10½
19. August VM: Ingen Perforering: 13¼
27. August VM: Ingen Perforering: 10½
14. September VM: Ingen Perforering: 10½
October VM: Ingen Perforering: 13¼
25. November VM: Ingen Perforering: 13¼
26. November VM: Ingen Perforering: 10½