| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| British African Protectorates | Extension | 23/09/1909 | |
| UNITED KINGDOM | Signature | 12/07/1889 | |
| UNITED KINGDOM | Ratification Dated | 11/03/1890 | |
| UNITED STATES OF AMERICA | Signature | 12/07/1889 | |
| UNITED STATES OF AMERICA | Ratification Dated | 11/03/1890 |