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.

SH003.05

Country / Post St Helena
Date of Issue 14 January 2005
Primary theme Minerology & Geology (Mountains & Geological features)
Subject Rock formations - The Turk's Cap
Width 42.0 mm
Height 28.5 mm
Denomination 0.50 SHP
Number in set 4 (show set)
Layout/Format sheet of 16
Perforations 14 by 14
Stamp issuing authority St Helena Post Office
Printer