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 Cape Verde
Date of Issue 3 June 2004
Primary theme Energy (Wind)
Subject Wind force
Width 23.5 mm
Height 29.0 mm
Denomination 20.00 CVE
Number in set 3 (show set)
Layout/Format sheet of 10
Perforations 13.3 by 13
Stamp issuing authority Correios De Cabo-Verde, Sarl
Printer Walsall Security Printers