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.

SH006.10

Country / Post St Helena
Date of Issue 18 March 2010
Primary theme History (World War I & II)
Subject Battle of Britain -The Blitz
Width 27.5 mm
Height 42.5 mm
Denomination 1.00 SHP
Number in set 7 (show set)
Layout/Format sheet of 6
Perforations 13.5 by 13.5
Stamp issuing authority St Helena Post Office
Printer