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.

GB025.12

Country / Post Great Britain
Date of Issue 6 February 2012
Primary theme Royalty & Monarchies
Subject Diamond Jubilee Definitive stamps
Width 20.0 mm
Height 24.0 mm
Denomination 1st class
Number in set 6 (show set)
Layout/Format miniature sheet of 6 of 6 designs
Perforations 15 by 14
Stamp issuing authority Royal Mail of Great Britain
Printer Cartor Security Print, France