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.

CH024.05

Country / Post Switzerland
Date of Issue 6 September 2005
Primary theme Post & Philately
United Nations (UPU)
Subject World Postal Network - Reaching Everyone Everywhere - UPU Service stamp
Width 33.0 mm
Height 28.0 mm
Denomination 1.00 CHF
Number in set 1
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority La Poste
Printer Joh Enschedé
Connect to the web shop of the issuing stamp authority