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 St Helena
Date of Issue 8 May 2010
Primary theme Post & Philately (Stamps on stamps)
Post & Philately (Philatelic Exhibitions)
Subject London 2010
Width 28.0 mm
Height 42.0 mm
Denomination 1.50 GBP
Number in set 1
Layout/Format miniature sheet of 1
Perforations 14 by 14
Stamp issuing authority St Helena Post Office