| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Australia | Signature | 25/10/1924 | |
| Australia | Ratification | 13/03/1925 | |
| Australia | Re-Application | 01/07/1954 | |
| AUSTRIA | Signature | 03/11/1923 | |
| AUSTRIA | Ratification | 11/09/1924 | |
| BELGIUM | Signature | 03/11/1923 | |
| BELGIUM | Ratification | 04/10/1924 | |
| BELGIUM | Re-Application | 01/12/1953 | |
| BRAZIL | Signature | 03/11/1923 | |
| BRAZIL | Ratification | 10/07/1929 | |
| BRITISH EMPIRE | Signature | 03/11/1923 | |
| BRITISH EMPIRE | Ratification | 29/08/1924 | |
| BRITISH EMPIRE | Not Applicable | 29/08/1924 | |
| BRITISH EMPIRE | Extension | 29/08/1924 | |
| BRITISH EMPIRE | Re-Application | 30/01/1953 | 01/01/1953 |
| BULGARIA | Signature | 31/10/1924 | |
| BULGARIA | Ratification | 10/12/1926 | |
| BURMA | Accession | 22/05/1939 | |
| CHILE | Signature | 03/11/1923 | |
| CHINA | Signature | 29/10/1924 | |
| CHINA | Ratification | 23/02/1926 | |
| Curacao | Extension | 30/05/1925 | |
| CYPRUS | Succession | 06/05/1964 | |
| CZECH REPUBLIC | Succession | 09/02/1996 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 08/05/1924 | |
| CZECHOSLOVAKIA | Ratification | 10/02/1927 | |
| DENMARK | Re-Application | 01/01/1905 | 01/10/1953 |
| DENMARK | Signature | 03/11/1923 | |
| DENMARK | Ratification | 17/05/1924 | |
| EGYPT | Signature | 03/11/1923 | |
| EGYPT | Ratification | 23/03/1925 | |
| EGYPT | Re-Application | 01/12/1953 | |
| ESTONIA | Accession | 28/02/1930 | |
| FIJI | Succession | 31/10/1972 | |
| FIJI | Denunciation | 31/10/1972 | 31/10/1973 |
| FINLAND | Signature | 03/11/1923 | |
| FINLAND | Ratification | 23/05/1928 | |
| FRANCE | Signature | 03/11/1923 | |
| FRANCE | Ratification | 13/09/1926 | |
| FRANCE | Communication | 22/02/1927 | |
| GERMAN DEMOCRATIC REPUBLIC | Re-Application | 08/03/1958 | |
| GERMAN DEMOCRATIC REPUBLIC | Re-Application | 06/06/1958 | |
| GERMANY | Signature | 03/11/1923 | |
| GERMANY | Ratification | 01/08/1925 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/01/1953 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/10/1953 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 01/01/1905 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/12/1953 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 23/01/1954 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/07/1954 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 20/07/1955 | |
| GREECE | Signature | 03/11/1923 | |
| GREECE | Ratification | 06/07/1927 | |
| GREECE | Re-Application | 23/01/1954 | |
| Hong Kong | Not Applicable | 01/07/1997 | |
| HONG KONG SAR | Application | 06/06/1997 | 01/07/1997 |
| HUNGARY | Signature | 29/04/1924 | |
| HUNGARY | Ratification | 23/02/1926 | |
| India | Signature | 03/11/1923 | |
| India | Ratification | 13/03/1925 | |
| Indies | Extension | 30/05/1925 | |
| IRAN | Re-Application | 01/12/1953 | |
| IRAQ | Accession | 03/05/1934 | |
| ISRAEL | Accession | 29/08/1966 | |
| ITALY | Signature | 03/11/1923 | |
| ITALY | Ratification | 13/06/1924 | |
| ITALY | Re-Application | 01/12/1953 | |
| JAPAN | Signature | 03/11/1923 | |
| JAPAN | Ratification | 29/07/1952 | |
| JORDAN | Withdrawal | 01/01/1905 | |
| LATVIA | Accession | 28/09/1931 | |
| LESOTHO | Succession | 12/01/1970 | |
| LITHUANIA | Signature | 03/11/1923 | |
| LUXEMBOURG | Signature | 03/11/1923 | |
| LUXEMBOURG | Ratification | 10/06/1927 | |
| LUXEMBOURG | Re-Application | 01/12/1953 | |
| MALAWI | Succession | 16/02/1967 | |
| Morocco | Signature | 03/11/1923 | |
| Morocco | Ratification | 08/11/1926 | |
| NETHERLANDS THE | Signature | 03/11/1923 | |
| NETHERLANDS THE | Declaration | 03/11/1923 | |
| NETHERLANDS THE | Ratification | 30/05/1925 | |
| NETHERLANDS THE | Re-Application | 01/12/1953 | |
| New Zealand | Signature | 12/05/1924 | |
| New Zealand | Ratification | 29/08/1924 | |
| NIGER | Accession | 14/03/1966 | |
| NIGERIA | Succession | 14/09/1964 | |
| NORWAY | Signature | 02/10/1924 | |
| NORWAY | Ratification | 07/09/1926 | |
| PAKISTAN | Accession | 27/01/1951 | |
| PARAGUAY | Signature | 29/09/1924 | |
| PERSIA | Accession | 08/05/1925 | |
| POLAND | Signature | 03/11/1923 | |
| POLAND | Ratification | 04/09/1931 | |
| PORTUGAL | Signature | 03/11/1923 | |
| Rhodesia And Nyasaland | Re-Application | 20/07/1955 | |
| ROUMANIA | Signature | 31/10/1924 | |
| ROUMANIA | Reservation | 31/10/1924 | |
| ROUMANIA | Ratification | 23/12/1925 | |
| SERB-CROAT-SLOVENE STATE | Signature | 03/11/1923 | |
| SERB-CROAT-SLOVENE STATE | Ratification | 02/05/1929 | |
| SIAM | Signature | 03/11/1923 | |
| SIAM | Ratification | 19/05/1925 | |
| SINGAPORE | Succession | 22/12/1967 | |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | 01/01/1993 |
| SOLOMON ISLANDS | Succession | 03/09/1981 | |
| South Africa | Signature | 03/11/1923 | |
| South Africa | Ratification | 29/08/1924 | |
| SPAIN | Signature | 03/11/1923 | |
| Surinam | Extension | 30/05/1925 | |
| SWEDEN | Signature | 18/09/1924 | |
| SWEDEN | Ratification | 12/02/1926 | |
| SWITZERLAND | Signature | 03/11/1923 | |
| SWITZERLAND | Ratification | 03/01/1927 | |
| SWITZERLAND | Notification | 24/03/2003 | |
| SYRIA & GRAND LEBANON | Accession | 09/03/1933 | |
| TONGA | Succession | 11/11/1977 | |
| Tunis | Signature | 03/11/1923 | |
| Tunis | Ratification | 08/11/1926 | |
| UNITED KINGDOM | Signature | 03/11/1923 | |
| UNITED KINGDOM | Ratification | 29/08/1924 | |
| URUGUAY | Signature | 03/11/1923 | |
| Western Samoa | Extension | 12/05/1924 | |
| YUGOSLAVIA | Re-Application | 01/07/1954 |