| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Australia | Extension | 15/07/1939 | |
| BELGIUM | Signature | 12/06/1934 | |
| BELGIUM | Declaration | 12/06/1934 | |
| FRANCE | Signature | 12/06/1934 | |
| Irish Free State | Signature | 12/06/1934 | |
| ITALY | Signature | 12/06/1934 | |
| NETHERLANDS THE | Signature | 12/06/1934 | |
| PORTUGAL | Signature | 12/06/1934 | |
| SPAIN | Signature | 12/06/1934 | |
| UNITED KINGDOM | Signature | 12/06/1934 |