Now showing: UN Vienna - Postage stamps (1980 - 1989) - 13 stamps.
31. January WM: None Perforation: 11¾
14. March WM: None Perforation: 13¼
22. May WM: None Perforation: 12½
20. June WM: None Perforation: 13¼
14. November WM: None Perforation: 13 x 13¼