CountryActionAction DateEffective Date
BarbadosAccession14/04/1928
British GuianaAccession14/04/1928
British HondurasAccession14/04/1928
CeylonAccession14/04/1928
CyprusAccession14/04/1928
Falkland IslandsAccession14/04/1928
FijiAccession14/04/1928
Gold CoastAccession14/04/1928
GrenadaAccession14/04/1928
Hong KongAccession14/04/1928
IndiaAccession05/03/1928
JamaicaAccession14/04/1928
Leeward IslandsAccession14/04/1928
Malay States, FederatedAccession14/04/1928
Malay States, UnfederatedAccession14/04/1928
Malay States, UnfederatedAccession16/05/1928
MaltaAccession14/04/1928
MauritiusAccession14/04/1928
NigeriaAccession14/04/1928
Northern RhodesiaAccession14/04/1928
NyasalandAccession14/04/1928
SeychellesAccession14/04/1928
SIAMSignature14/07/1925
SIAMRatification26/12/1925
SIAMDenunciation05/11/193604/11/1937
St HelenaAccession14/04/1928
St LuciaAccession14/04/1928
St VincentAccession14/04/1928
Straits SettlementsAccession14/04/1928
TanganyikaAccession14/04/1928
The GambiaAccession14/04/1928
UNITED KINGDOMSignature14/07/1925
UNITED KINGDOMRatification16/12/1925