In 1949 the 75th anniversary of the Universal Postal
Union was celebrated throughout the world. All postal administrations were
requested to issue special postal stamps to commemorate this birthday. It
resulted in the first UN related omnibus issue.
Stamp catalogue
Ascension Island 10 October 1949
Baden 4
October 1949
Bahawalpur 10 October 1949
Bahawalpur 10 October 1949
Basutoland 10
October 1949
Bechuanaland Protectorate 10 October 1949
Liechtenstein 23 May
1949
Netherlands 1
October 1949
Netherlands Antilles 3 October 1949
Portuguese India October 1949
Rhineland-Palatinate 4 October 1949
Surinam 1
October 1949
Tunisia 24
October 1949
Union of Soviet Socialist Republics 5 October 1949
Union
of Soviet Socialist Republics 10
October 1949
Württemberg-Hohenzollern 4 October 1949