| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Signature | 19/06/1934 | |
| AFGHANISTAN | Ratification | 12/06/1939 | |
| ARGENTINA | Signature | 19/06/1934 | |
| ARGENTINA | Ratification | 14/03/1950 | |
| BELGIUM | Signature | 19/06/1934 | |
| BELGIUM | Ratification | 04/08/1937 | |
| BENIN | Ratification | 12/12/1960 | |
| BRAZIL | Signature | 19/06/1934 | |
| BRAZIL | Ratification | 08/06/1936 | |
| BURMA | Succession | 22/11/1935 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 27/10/1960 | |
| CHAD | Ratification | 10/11/1960 | |
| CONGO | Ratification | 10/11/1960 | |
| EGYPT | Signature | 19/06/1934 | |
| EGYPT | Ratification | 11/07/1947 | |
| ESTONIA | Signature | 19/06/1934 | |
| ESTONIA | Ratification | 21/12/1935 | |
| FRANCE | Signature | 19/06/1934 | |
| FRANCE | Ratification | 25/01/1938 | |
| GABON | Ratification | 14/10/1960 | |
| GREECE | Signature | 19/06/1934 | |
| GREECE | Ratification | 30/05/1936 | |
| GUINEA | Ratification | 21/01/1959 | |
| HUNGARY | Signature | 19/06/1934 | |
| HUNGARY | Ratification | 18/12/1936 | |
| HUNGARY | Denunciation | 15/11/1977 | 15/11/1978 |
| INDIA | Signature | 19/06/1934 | |
| INDIA | Ratification | 22/11/1935 | |
| IRAQ | Signature | 19/06/1934 | |
| IRAQ | Ratification | 28/03/1938 | |
| IRELAND, REPUBLIC OF | Signature | 19/06/1934 | |
| IRELAND, REPUBLIC OF | Ratification | 15/03/1937 | |
| IVORY COAST | Ratification | 21/11/1960 | |
| MADAGASCAR | Ratification | 01/11/1960 | |
| MALI | Accession | 22/09/1960 | |
| MAURITANIA | Accession | 20/06/1961 | |
| MOROCCO | Ratification | 13/06/1956 | |
| NETHERLANDS THE | Signature | 19/06/1934 | |
| NETHERLANDS THE | Ratification | 09/12/1935 | |
| NETHERLANDS THE | Declaration | 25/07/1951 | |
| NEW ZEALAND | Signature | 19/06/1934 | |
| NEW ZEALAND | Ratification | 29/03/1938 | |
| NIGER | Ratification | 27/02/1961 | |
| PAKISTAN | Ratification | 22/11/1935 | |
| PERU | Signature | 19/06/1934 | |
| PERU | Ratification | 08/11/1945 | |
| SENEGAL | Ratification | 04/11/1960 | |
| SOUTH AFRICA | Signature | 19/06/1934 | |
| SOUTH AFRICA | Ratification | 28/05/1935 | |
| SRI LANKA | Signature | 19/06/1934 | |
| SRI LANKA | Ratification | 02/09/1950 | |
| Surinam | Extension | 19/06/1934 | |
| SURINAME | Succession | 15/06/1976 | |
| SWITZERLAND | Signature | 19/06/1934 | |
| SWITZERLAND | Ratification | 04/06/1936 | |
| TOGO | Ratification | 07/06/1960 | |
| UNITED KINGDOM | Signature | 19/06/1934 | |
| UNITED KINGDOM | Ratification | 25/01/1937 | |
| UNITED KINGDOM | Denunciation | 04/10/1947 | 04/10/1948 |
| UPPER VOLTA | Ratification | 21/11/1960 | |
| VENEZUELA | Signature | 20/11/1944 | |