| Country | Action | Action Date | Effective Date |
|---|
| AUSTRIA | Signature | 19/03/1861 | |
| AUSTRIA | Ratification Dated | 18/04/1861 | |
| AUSTRIA | Ratification | 18/05/1861 | |
| FRANCE | Signature | 19/03/1861 | |
| FRANCE | Ratification Dated | 03/04/1861 | |
| FRANCE | Ratification | 18/05/1861 | |
| PRUSSIA | Signature | 19/03/1861 | |
| PRUSSIA | Ratification Dated | 12/04/1861 | |
| PRUSSIA | Ratification | 18/05/1861 | |
| RUSSIA | Signature | 19/03/1861 | |
| RUSSIA | Ratification Dated | 25/03/1861 | |
| RUSSIA | Ratification | 18/05/1861 | |
| TURKEY | Signature | 19/03/1861 | |
| TURKEY | Ratification Dated | 14/04/1861 | |
| TURKEY | Ratification | 18/05/1861 | |
| UNITED KINGDOM | Signature | 19/03/1861 | |
| UNITED KINGDOM | Ratification | 30/03/1861 | |
| UNITED KINGDOM | Ratification Dated | 30/03/1861 | |
| UNITED KINGDOM | Ratification | 18/05/1861 | |