| Country | Action | Action Date | Effective Date |
|---|
| BADEN | Signature | 30/05/1865 | |
| BADEN | Ratification Dated | 19/06/1865 | |
| BADEN | Ratification | 30/06/1865 | |
| BAVARIA | Signature | 30/05/1865 | |
| BAVARIA | Ratification Dated | 19/06/1865 | |
| BAVARIA | Ratification | 30/06/1865 | |
| BRUNSWICK | Signature | 30/05/1865 | |
| BRUNSWICK | Ratification Dated | 04/06/1865 | |
| BRUNSWICK | Ratification | 30/06/1865 | |
| Coral Sea Islands | | | |
| ELECTORATE OF HESSE | Signature | 30/05/1865 | |
| ELECTORATE OF HESSE | Ratification Dated | 14/06/1865 | |
| ELECTORATE OF HESSE | Ratification | 30/06/1865 | |
| FRANKFORT | Signature | 30/05/1865 | |
| FRANKFORT | Ratification Dated | 13/06/1865 | |
| FRANKFORT | Ratification | 30/06/1865 | |
| GRAND DUCHY OF HESSE | Signature | 30/05/1865 | |
| GRAND DUCHY OF HESSE | Ratification Dated | 21/06/1865 | |
| GRAND DUCHY OF HESSE | Ratification | 30/06/1865 | |
| HANOVER | Signature | 30/05/1865 | |
| HANOVER | Ratification Dated | 13/06/1865 | |
| HANOVER | Ratification | 30/06/1865 | |
| LAUENBURG DUCHY OF | Accession | 09/01/1869 | |
| LUBECK | Accession | 09/01/1869 | |
| MECKLENBERG-STRELITZ | Accession | 09/01/1869 | |
| NASSAU | Signature | 30/05/1865 | |
| NASSAU | Ratification Dated | 16/06/1865 | |
| NASSAU | Ratification | 30/06/1865 | |
| OLDENBURG | Signature | 30/05/1865 | |
| OLDENBURG | Ratification Dated | 06/06/1865 | |
| OLDENBURG | Ratification | 30/06/1865 | |
| PRUSSIA | Signature | 30/05/1865 | |
| PRUSSIA | Ratification Dated | 19/06/1865 | |
| PRUSSIA | Ratification | 30/06/1865 | |
| REUSSELDER | Signature | 30/05/1865 | |
| REUSSELDER | Ratification Dated | 21/06/1865 | |
| REUSSELDER | Ratification | 30/06/1865 | |
| REUSSYOUNGER | Signature | 30/05/1865 | |
| REUSSYOUNGER | Ratification Dated | 14/06/1865 | |
| REUSSYOUNGER | Ratification | 30/06/1865 | |
| SAXE-ALTENBURG | Signature | 30/05/1865 | |
| SAXE-ALTENBURG | Ratification Dated | 17/06/1865 | |
| SAXE-ALTENBURG | Ratification | 30/06/1865 | |
| SAXE-COBURG-GOTHA | Signature | 30/05/1865 | |
| SAXE-COBURG-GOTHA | Ratification Dated | 23/06/1865 | |
| SAXE-COBURG-GOTHA | Ratification | 30/06/1865 | |
| SAXE-MEININGEN | Ratification Dated | 06/06/1865 | |
| SAXE-MEININGEN | Ratification | 30/06/1865 | |
| SAXE-MEININGEN | Signature | 30/06/1865 | |
| SAXE-WEIMAR | Signature | 30/05/1865 | |
| SAXE-WEIMAR | Ratification Dated | 05/06/1865 | |
| SAXE-WEIMAR | Ratification | 30/06/1865 | |
| SAXONY | Signature | 30/05/1865 | |
| SAXONY | Ratification Dated | 07/06/1865 | |
| SAXONY | Ratification | 30/06/1865 | |
| SCHWARTZBURG-RUDOLSTADT | Signature | 30/05/1865 | |
| SCHWARTZBURG-RUDOLSTADT | Ratification Dated | 16/06/1865 | |
| SCHWARTZBURG-RUDOLSTADT | Ratification | 30/06/1865 | |
| SCHWARTZBURG-SONDERSHAUSEN | Signature | 30/05/1865 | |
| SCHWARTZBURG-SONDERSHAUSEN | Ratification Dated | 05/06/1865 | |
| SCHWARTZBURG-SONDERSHAUSEN | Ratification | 30/06/1865 | |
| UNITED KINGDOM | Signature | 30/05/1865 | |
| UNITED KINGDOM | Ratification | 12/06/1865 | |
| UNITED KINGDOM | Ratification Dated | 12/06/1865 | |
| UNITED KINGDOM | Ratification | 30/06/1865 | |
| UNITED KINGDOM | Denunciation | 30/07/1897 | |
| WURTEMBURG | Signature | 30/05/1865 | |
| WURTEMBURG | Ratification Dated | 24/06/1865 | |
| WURTEMBURG | Ratification | 30/06/1865 | |