The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.


Country / Post Great Britain
Date of Issue 28 February 2008
Primary theme Literature, Press and Comics (Printing)
Subject The Age of Lancaster & York - William Caxton
Width 27.0 mm
Height 37.0 mm
Denomination 0.78 GBP
Number in set 4 (show set)
Layout/Format miniature sheet of 4 of 4 designs
Perforations 14 by 14
Stamp issuing authority Royal Mail of Great Britain
Printer Cartor Security Print, France