CountryActionAction DateEffective Date
AUSTRIASignature09/12/1923
AUSTRIARatification20/01/1927
BELGIUMSignature09/12/1923
BRITISH EMPIRESignature09/12/1923
BRITISH EMPIRERatification01/04/1925
British GuianaExtension22/09/1925
British HondurasExtension22/09/1925
BruneiExtension22/09/1925
BULGARIASignature31/10/1924
CHILESignature09/12/1923
DANZIGSignature09/12/1923
DANZIGRatification17/05/1934
DENMARKSignature09/12/1923
DENMARKRatification27/04/1926
EGYPTAccession29/01/1940
FRANCESignature24/10/1924
Gold CoastExtension22/09/1925
GREECESignature09/12/1923
GREECERatification14/03/1929
Hong KongExtension22/09/1925
HUNGARYSignature09/12/1923
HUNGARYRatification20/03/1933
IRAQAccession28/01/1936
ITALYSignature09/12/1923
JORDANWithdrawal01/01/1905
KenyaExtension22/09/1925
LITHUANIASignature09/12/1923
Malay States, FederatedExtension22/09/1925
Malay States, UnfederatedExtension22/09/1925
NEW ZEALANDSignature15/09/1924
NEW ZEALANDRatification01/04/1925
Newfoundland (UK)Extension23/04/1925
NigeriaExtension22/09/1925
Northern RhodesiaExtension22/09/1925
NyasalandExtension22/09/1925
PalestineExtension22/09/1925
PANAMAAccession07/07/1934
POLANDSignature09/12/1923
SERB-CROAT-SLOVENE STATESignature09/12/1923
SIAMSignature02/09/1924
SIAMRatification09/01/1925
Sierra LeoneExtension22/09/1925
Southern RhodesiaExtension23/04/1925
Straits SettlementsExtension22/09/1925
TanganyikaExtension22/09/1925
The GambiaExtension22/09/1925
UgandaExtension12/01/1927
UNITED KINGDOMSignature09/12/1923
UNITED KINGDOMRatification01/04/1925
URUGUAYSignature09/12/1923
Western SamoaExtension01/04/1925