| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| All Territories under UK Sovereignty | Extension | 04/07/1885 | |
| GUATEMALA | Signature | 04/07/1885 | |
| GUATEMALA | Ratification | 06/09/1886 | |
| UNITED KINGDOM | Signature | 04/07/1885 | |
| UNITED KINGDOM | Ratification | 16/07/1886 | |
| UNITED KINGDOM | Extension | 11/11/1909 | |
| UNITED KINGDOM | Extension | 30/03/1932 | |
| UNITED KINGDOM | Extension | 16/06/1934 |