1949, 75th Anniversary of Universal Postal Union Two Hemispheres, 2½d Blue U K

1949, 75th Anniversary of Universal Postal Union Two Hemispheres, 

This is one of the stamps of 1949, 75th Anniversary of Universal Postal Union Two Hemispheres, 2½d Blue U K

1. Motive: 75th Anniversary of Universal Postal Union 
2. Year: 1949
3. Text: 2 1/2 D-Universal Postal Union-1874-1949
4. Watermark:
5. Perforation:
6. Condition: Ø = used/cancelled
7. Keywords:75th Anniversary of Universal Postal Union Two Hemispheres, 2½d Blue 1949
8. StampScout: ---
9. MichN
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History

Postage stamps were first used in the United Kingdom of Great Britain and Ireland on 6 May 1840, with the introduction of the world's first adhesive postage stamps, the Penny Black and Two Pence Blue. Until 1924, all British stamps depicted only the portrait of the reigning monarch, with the exception of the 'High Value' stamps (the so-called "Sea Horses" design) issued in 1913, which were twice the size of normal stamps with added pictorial design.

In 1924, the first commemorative stamp was issued for the British Empire Exhibition. There were then occasional issues over the next thirty years, when the frequency of new issues became more regular. From the mid-sixties, in most years, six to nine sets of commemorative stamps have been issued every year. The General Post Office introduced official First Day Covers and Presentation Packs in the mid-1960s and PHQ Cards, postcard sized reproductions of commemorative stamps, have also been issued to accompany every new set of stamps since the mid-1970s.

1949
10 October 1949	75th Anniversary of Universal Postal Union	Four (21/2d, 3d, 6d, 1s) All with Watermark