164
Netherlands (1 November 1912)
Dutch India, Curaçao, and Suriname (1 April 1913)
Poland (28 January 1920)
Portugal (including its colonies) (29 March 1911)
Romania (1 January 1927)
Sweden (1 August 1904)
Switzerland (original party)
Syria and Republic of Lebanon (1 August 1924)
Czechoslovakia (22 February 1921)
Tunisia (original party)
Union of South Africa (3 October 1928)
