Now showing: Cook Islands - Official stamps (1975 - 1998) - 2 stamps.
1989
Coral & Queen Elizabeth II - Cook Island Postage Stamps Overprinted "O.H.M.S." and Surcharged
30. May WM: None Perforation: 14¼ x 13¾
1989
Coral & Queen Elizabeth II - Cook Island Postage Stamps Overprinted "O.H.M.S." and Surcharged
12. July WM: None Perforation: 14¼ x 13¾