Now showing: Costa Rica - Postage stamps (1990 - 1999) - 7 stamps.
11. August WM: None Perforation: 13¼
24. September WM: None Perforation: 10½
26. September WM: None Perforation: 13¼
9. October WM: None Perforation: 10½
10. November WM: None Perforation: 10½