| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| All Territories under UK Sovereignty | Extension | 14/08/1876 | |
| British African Protectorates | Extension | 19/04/1910 | |
| Cameroons | Extension | 13/11/1923 | |
| FRANCE | Signature | 14/08/1876 | |
| Malay States, Federated | Extension | 04/02/1919 | |
| Tanganyika | Extension | 13/11/1923 | |
| Togoland | Extension | 13/11/1923 | |
| Tunis | Extension | 31/12/1889 | 16/05/1890 |
| UNITED KINGDOM | Signature | 14/08/1876 |