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Party Signature Provisional
application
RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known Entry into force Renunciation Termination
Afghanistan 05-05-1944 (A)
Albania 02-03-1925 02-03-1925
Argentina 23-04-1946 (A)
Austria 16-07-1920 16-07-1920
Bahamas 13-08-1975 (Su) 10-07-1973
Belgium 16-06-1914 (R) 14-05-1919
Bolivia 10-01-1920 10-01-1920
Brazil 23-12-1914 10-01-1920
Bulgaria 09-08-1920 09-08-1920
Cambodia 03-10-1951 (Su)
Cameroon 20-11-1961 (Su) 01-01-1960
Central African Republic 04-09-1962 (Su) 13-08-1960
Chile 16-01-1923 18-05-1923
China 23-01-1912 09-02-1914 11-02-1915
Colombia 26-06-1924 30-06-1924
Costa Rica 01-08-1924 29-07-1925
Côte d'Ivoire 08-12-1961 (Su) 07-08-1960
Cuba 08-03-1920 08-03-1920
Cyprus 16-05-1963 (Su) 16-08-1960
Czech Republic 30-12-1993 (Su) 01-01-1993
Czechoslovakia (<01-01-1993) 10-01-1920 (R) 10-01-1920
Democratic Republic of the Congo 31-05-1962 (Su) 30-06-1960
Denmark 10-07-1913 21-10-1921
Dominican Republic 07-06-1923 14-04-1931
Ecuador 25-02-1915 23-08-1923
Egypt 05-06-1942 (A)
El Salvador 19-09-1922 29-05-1931
Estonia 20-04-1923 21-01-1931
Ethiopia 28-12-1948 (A)
Fiji 01-11-1971 (Su) 10-10-1970
Finland 16-05-1922 01-12-1922
France 23-01-1912 10-01-1920 (R) 10-01-1920
Germany 23-01-1912 10-01-1920 (R) 10-01-1920
Ghana 03-04-1958 (Su) 06-03-1957
Greece 30-03-1920 30-03-1920
Guatemala 27-08-1913 10-01-1920
Haïti 30-06-1920 30-06-1920
Honduras 29-08-1913 03-04-1925
Hungary 26-07-1921 26-07-1921
Indonesia 29-05-1958 (A)
Iran 23-01-1912
Israel 12-05-1952 (A)
Italy 23-01-1912 28-06-1914 10-01-1920
Jamaica 26-12-1963 (Su) 06-08-1962
Japan 23-01-1912 10-01-1920 10-01-1920
Jordan 12-05-1958 (A)
Laos 07-10-1950 (Su)
Latvia 25-03-1924 18-01-1932
Lebanon 24-05-1954 (Su) 26-11-1941
Lesotho 04-11-1974 (Su) 04-10-1966
Liberia 30-06-1920 30-06-1920
Luxembourg 21-08-1922 21-08-1922
Malawi 22-07-1965 (Su) 06-07-1964
Malaysia 21-08-1958 (Su) 31-08-1957
Malta 03-01-1966 (Su) 21-09-1964
Mauritius 18-07-1969 (Su) 12-03-1968
Mexico 02-04-1925 08-05-1925
Monaco 20-02-1925 26-05-1925
Netherlands, the Kingdom of the 23-01-1912 28-07-1914 (R) 11-02-1915
Nicaragua 10-11-1914 03-11-1920
Niger 25-08-1961 (Su) 03-08-1960
Nigeria 26-06-1961 (Su) 01-10-1960
Niue 11-02-1915
Norway 12-11-1914 20-09-1915
Panama 25-11-1920 25-11-1920
Papua New Guinea 28-10-1980 (Su) 16-09-1975
Paraguay 17-03-1943
Peru 10-01-1920 10-01-1920
Philippines 30-09-1959 (Su) 04-07-1946
Poland 10-01-1920 10-01-1920
Portugal 23-01-1912 15-12-1913 08-04-1920
Republic of the Congo 15-10-1962 (Su) 15-08-1960
Romania 14-09-1920 14-09-1920
Russia (< 25-10-1917) 23-01-1912
Rwanda 05-05-1964 (Su) 01-07-1962
Saudi Arabia 19-02-1943 (A)
Senegal 02-05-1963 (Su) 20-08-1960
Serbia 31-07-2002 (Su) 27-04-1992
Sierra Leone 13-03-1962 (Su) 27-04-1961
Slovakia 18-05-1993 (Su) 01-01-1993
Spain 25-01-1919 11-02-1921
Sri Lanka 04-12-1957 (Su) 04-02-1948
Sweden 17-04-1914 13-01-1921
Switzerland 15-01-1925 15-01-1925
Syria 20-01-1954 (Su) 01-01-1944
Thailand 23-01-1912 10-07-1913 10-07-1920
Trinidad and Tobago 11-04-1966 (Su) 31-08-1962
Türkiye 15-09-1933 15-09-1933 15-09-1933
United Kingdom 23-01-1912 15-07-1914 10-01-1920
United States of America 23-01-1912 15-12-1913 (R) 11-02-1915
Uruguay 03-04-1916 10-01-1920
Venezuela 28-10-1913 12-07-1927
Yugoslavia (< 25-06-1991) 10-02-1920 10-02-1920
Zambia 09-04-1973 (Su) 24-10-1964