| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | | 01/01/1986 |
| Aruba | Extension | | 01/01/1986 |
| AUSTRIA-HUNGARY | Signature | 02/07/1890 | |
| AUSTRIA-HUNGARY | Ratification | 02/01/1892 | |
| BELGIUM | Signature | 02/07/1890 | |
| BELGIUM | Ratification | 02/07/1891 | |
| CONGO | Signature | 02/07/1890 | |
| CONGO | Ratification | 02/07/1891 | |
| DENMARK | Signature | 02/07/1890 | |
| DENMARK | Ratification | 02/07/1891 | |
| FRANCE | Signature | 02/07/1890 | |
| FRANCE | Ratification | 02/01/1892 | |
| GERMANY | Signature | 02/07/1890 | |
| GERMANY | Ratification | 02/07/1891 | |
| ITALY | Signature | 02/07/1890 | |
| ITALY | Ratification | 02/07/1891 | |
| LIBERIA | Accession | 11/08/1892 | |
| NETHERLANDS THE | Signature | 02/07/1890 | |
| NETHERLANDS THE | Ratification | 02/07/1891 | |
| ORANGE FREE STATE | Accession | 03/08/1894 | |
| PERSIA | Signature | 02/07/1890 | |
| PERSIA | Ratification | 02/07/1891 | |
| PORTUGAL | Signature | 02/07/1890 | |
| PORTUGAL | Ratification | 30/03/1892 | |
| RUSSIA | Signature | 02/07/1890 | |
| RUSSIA | Ratification | 02/01/1892 | |
| SPAIN | Signature | 02/07/1890 | |
| SPAIN | Ratification | 02/07/1891 | |
| SWEDEN AND NORWAY | Signature | 02/07/1890 | |
| SWEDEN AND NORWAY | Ratification | 02/07/1891 | |
| TURKEY | Signature | 02/07/1890 | |
| TURKEY | Ratification | 02/01/1892 | |
| UNITED KINGDOM | Signature | 02/07/1890 | |
| UNITED KINGDOM | Ratification | 02/07/1891 | |
| UNITED STATES OF AMERICA | Signature | 02/07/1890 | |
| UNITED STATES OF AMERICA | Ratification | 02/07/1890 | |
| ZANZIBAR | Signature | 02/07/1890 | |
| ZANZIBAR | Ratification | 02/07/1891 | |