| Country | Action | Action Date | Effective Date |
|---|
| Antigua | Extension | 04/07/1891 | |
| ARGENTINE REPUBLIC | Signature | 04/07/1891 | |
| AUSTRIA | Signature | 04/07/1891 | |
| Bahamas | Extension | 04/07/1891 | |
| Barbados | Extension | 04/07/1891 | |
| BELGIUM | Signature | 04/07/1891 | |
| Bermuda | Extension | 04/07/1891 | |
| BOLIVIA | Accession | 01/07/1892 | |
| BOSNIA AND HERZEGOVINA | Accession | 01/07/1892 | |
| BRAZIL | Signature | 04/07/1891 | |
| British Guiana | Extension | 04/07/1891 | |
| British Honduras | Extension | 04/07/1891 | |
| British Virgin Islands | Extension | 04/07/1891 | |
| BULGARIA | Signature | 04/07/1891 | |
| Canada | Signature | 24/08/1891 | |
| Cape Of Good Hope | Accession | 01/01/1895 | |
| Ceylon | Extension | 04/07/1891 | |
| CHILE | Accession | 14/11/1893 | |
| COLOMBIA | Signature | 04/07/1891 | |
| CONGO | Signature | 04/07/1891 | |
| COSTA RICA | Accession | 01/07/1892 | |
| Cyprus | Extension | 04/07/1891 | |
| DENMARK | Signature | 04/07/1891 | |
| Dominica | Extension | 04/07/1891 | |
| DOMINICAN REPUBLIC | Accession | 01/07/1892 | |
| ECUADOR | Accession | 01/07/1892 | |
| EGYPT | Signature | 04/07/1891 | |
| Falkland Islands | Extension | 04/07/1891 | |
| FRANCE | Signature | 04/07/1891 | |
| GERMANY | Signature | 04/07/1891 | |
| Gold Coast | Extension | 04/07/1891 | |
| GREECE | Signature | 04/07/1891 | |
| Grenada | Extension | 04/07/1891 | |
| GUATEMALA | Signature | 04/07/1891 | |
| Hawaii | Signature | 04/07/1891 | |
| HAYTI | Accession | 01/07/1892 | |
| HONDURAS | Accession | 03/06/1895 | |
| Hong Kong | Extension | 04/07/1891 | |
| HUNGARY | Signature | 04/07/1891 | |
| India | Signature | 04/07/1891 | |
| ITALY | Signature | 04/07/1891 | |
| Jamaica | Extension | 04/07/1891 | |
| JAPAN | Signature | 04/07/1891 | |
| Labuan | Extension | 04/07/1891 | |
| LIBERIA | Signature | 04/07/1891 | |
| LUXEMBOURG | Signature | 04/07/1891 | |
| Malta | Extension | 04/07/1891 | |
| Mauritius | Extension | 04/07/1891 | |
| MEXICO | Signature | 04/07/1891 | |
| MONTENEGRO | Signature | 04/07/1891 | |
| Montserrat | Extension | 04/07/1891 | |
| Natal | Accession | 01/07/1892 | |
| NETHERLANDS THE | Signature | 04/07/1891 | |
| Nevis | Extension | 04/07/1891 | |
| New South Wales | Accession | 01/07/1892 | |
| Newfoundland (UK) | Extension | 04/07/1891 | |
| NICARAGUA | Accession | 01/07/1892 | |
| Nigeria | Extension | 04/07/1891 | |
| North Borneo | Extension | 04/07/1891 | |
| NORWAY | Signature | 04/07/1891 | |
| PERSIA | Signature | 04/07/1891 | |
| PERU | Signature | 04/07/1891 | |
| PORTUGAL | Signature | 04/07/1891 | |
| Queensland | Accession | 01/07/1892 | |
| ROUMANIA | Signature | 04/07/1891 | |
| RUSSIA | Signature | 04/07/1891 | |
| SALVADOR | Signature | 04/07/1891 | |
| SERBIA | Signature | 04/07/1891 | |
| SIAM | Signature | 04/07/1891 | |
| Sierra Leone | Extension | 04/07/1891 | |
| SOUTH AFRICA | Accession | 01/07/1892 | |
| SPAIN | Signature | 04/07/1891 | |
| St Kitts | Extension | 04/07/1891 | |
| St Lucia | Extension | 04/07/1891 | |
| St Vincent | Extension | 04/07/1891 | |
| Straits Settlements | Extension | 04/07/1891 | |
| SWEDEN | Signature | 04/07/1891 | |
| SWITZERLAND | Signature | 04/07/1891 | |
| The Gambia | Extension | 04/07/1891 | |
| Trinidad And Tobago | Extension | 04/07/1891 | |
| TUNIS | Signature | 04/07/1891 | |
| TURKEY | Signature | 04/07/1891 | |
| Turks And Caicos Islands | Extension | 04/07/1891 | |
| UNITED KINGDOM | Signature | 04/07/1891 | |
| UNITED STATES OF AMERICA | Signature | 04/07/1891 | |
| URUGUAY | Signature | 04/07/1891 | |
| VENEZUELA | Signature | 04/07/1891 | |
| Victoria | Accession | 01/07/1892 | |
| Western Australia | Accession | 01/07/1892 | |