Argentina
(Apr 18th, 1946)
British Empire
(Feb 17th, 1926)
(Same reservation as for the Convention.)
State of Sarawak
(Mar 11th, 1926 a)
Bahamas
(Oct 22nd, 1926 a)
Burma2
Canada
(Jun 27th, 1928)
Australia
New Zealand
Union of South Africa
India
Iraq
(Aug 8th, 1931 a)
Bolivia
(Apr 15th, 1932 a)
Bulgaria
(Mar 9th, 1927)
Chile
(Apr 11th, 1933)
Colombia
(Dec 3rd, 1930 a)
Costa Rica
(Jan 8th, 1935 a)
Cuba
(Jul 6th, 1931)
Czechoslovakia3
(Apr 11th, 1927)
Ecuador
(Oct 23rd, 1934 a)
Egypt
(Mar 16th, 1926 a)
Estonia
(Aug 30th, 1930 a)
Finland
(Dec 5th, 1927 a)
Germany
(Aug 15th, 1929)
Greece
(Dec 10th, 1929)
Haiti
(Nov 30th, 1938 a)
Honduras
(Sep 21st, 1934 a)
Japan
(Oct 10th, 1928)
Latvia
(Oct 31st, 1928)
Luxembourg
(Mar 27th, 1928)
Netherlands
(Jun 4th, 1928)
( including Netherlands Indies, Surinam and Curaçao )
Portugal
(Sep 13th, 1926)
Romania
(May 18th, 1928 a)
Salvador
(Dec 2nd, 1926 a)
Spain
(Apr 19th, 1930 a)
(Feb 20th, 1926)
Thailand
(Oct 11th, 1929)
Turkey
(Apr 3rd, 1933 a)
Venezuela
(Jun 19th, 1929 a)
Yugoslavia (former)4
(Sep 4th, 1929)
Albania
Iran
Nicaragua