WWI ALLIED POWERS
Versailles Treaty Plebiscite in Allenstein
FRANCE
Council of Europe mailposted in Strasbourg
FRANCE
UNESCO mail posted in Paris
WWI ALLIED POWERS
Versailles Treaty Plebiscite in Marienwerde
WWI ALLIED POWERS
Allied and Associated Powers control of Memel after WWI
NETHERLANDS
International Court of Justice mail
LEAGUE OF NATIONS
League of Nations Administration of the Saar
SWITZERLAND
League of Nations mail
SWITZERLAND
International Bureau of the Universal Postal Union mail
SWITZERLAND
World Intellectual Property Organization mail
UNITED NATIONS
UN Temporary Executive Authority over West New Guinea
UNITED NATIONS
UN Headquarters Building, New York
UNITED NATIONS
UN Headquarters Building, Geneva
UNITED NATIONS
UN Headquarters Building, Vienna
UNITED NATIONS
UN Interim Administration Kosovo
