| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRIA-HUNGARY | Signature | 11/12/1868 | |
| BADEN | Accession | 30/12/1868 | |
| BAVARIA | Signature | 11/12/1868 | |
| BELGIUM | Signature | 11/12/1868 | |
| BRAZIL | Accession | 11/10/1869 | |
| DENMARK | Signature | 11/12/1868 | |
| FRANCE | Signature | 11/12/1868 | |
| GREECE | Signature | 11/12/1868 | |
| ITALY | Signature | 11/12/1868 | |
| NETHERLANDS THE | Signature | 11/12/1868 | |
| PERSIA | Signature | 11/12/1868 | |
| PORTUGAL | Signature | 11/12/1868 | |
| PRUSSIA | Signature | 11/12/1868 | |
| RUSSIA | Signature | 11/12/1868 | |
| SWEDEN AND NORWAY | Signature | 11/12/1868 | |
| SWITZERLAND | Signature | 11/12/1868 | |
| TURKEY | Signature | 11/12/1868 | |
| UK Responsibility Territories | Application | ||
| UNITED KINGDOM | Signature | 11/12/1868 | |
| WURTEMBURG | Signature | 11/12/1868 |