| Country | Action | Action Date | Effective Date |
|---|
| ARGENTINA | Signature | 24/08/1925 | |
| BELGIUM | Signature | 08/09/1924 | |
| BELGIUM | Ratification | 02/06/1930 | |
| BRAZIL | Signature | 29/12/1924 | |
| BRAZIL | Ratification | 28/04/1931 | |
| CHILE | Signature | 28/10/1927 | |
| DANZIG | Signature | 22/08/1925 | |
| DENMARK | Signature | 24/08/1925 | |
| DENMARK | Ratification | 02/06/1930 | |
| DENMARK | Withdrawal | 30/06/1963 | |
| DOMINICAN REPUBLIC | Accession | 23/07/1958 | |
| ESTONIA | Signature | 10/04/1926 | |
| FINLAND | Accession | 12/07/1934 | |
| FINLAND | Withdrawal | 30/06/1963 | |
| FRANCE | Signature | 28/02/1925 | |
| FRANCE | Ratification | 23/08/1935 | |
| FRANCE | Withdrawal | 26/10/1976 | 26/10/1977 |
| HUNGARY | Signature | 08/04/1926 | |
| HUNGARY | Ratification | 02/06/1930 | |
| ITALY | Signature | 17/09/1925 | |
| JAPAN | Signature | 25/08/1925 | |
| LATVIA | Signature | 27/10/1925 | |
| MALAGASY REPUBLIC | Succession | 13/07/1965 | |
| MONACO | Accession | 15/05/1931 | |
| MONACO | Withdrawal | 24/01/1977 | 24/01/1978 |
| NORWAY | Signature | 14/04/1927 | |
| NORWAY | Ratification | 10/10/1933 | |
| NORWAY | Withdrawal | 30/06/1963 | |
| POLAND | Signature | 22/08/1925 | |
| POLAND | Ratification | 26/10/1936 | |
| PORTUGAL | Signature | 09/10/1926 | |
| PORTUGAL | Ratification | 02/06/1930 | |
| ROUMANIA | Signature | 12/03/1925 | |
| SERB-CROAT-SLOVENE STATE | Signature | 10/04/1926 | |
| SPAIN | Signature | 24/08/1925 | |
| SPAIN | Ratification | 02/06/1930 | |
| SPAIN | Denunciation | 04/01/2005 | 04/01/2006 |
| SWEDEN | Signature | 22/06/1927 | |
| SWEDEN | Ratification | 01/07/1938 | |
| SWEDEN | Declaration | 01/07/1938 | |
| SWEDEN | Withdrawal | 30/06/1963 | |
| TURKEY | Accession | 04/07/1955 | |
| UNITED KINGDOM | Signature | 15/11/1924 | |
| UNITED KINGDOM | Declaration | 15/11/1924 | |