| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| MADAGASCAR | Signature | 27/06/1865 | |
| MADAGASCAR | Ratification Dated | 02/07/1866 | |
| MADAGASCAR | Ratification | 05/07/1866 | |
| UNITED KINGDOM | Signature | 27/06/1865 | |
| UNITED KINGDOM | Ratification Dated | 31/10/1865 | |
| UNITED KINGDOM | Ratification | 05/07/1866 |