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.

CH003.05

Country / Post Switzerland
Date of Issue 3 January 2005
Primary theme Post & Philately
Mankind
Subject Big things begin with a letter
Width 32.0 mm
Height 27.5 mm
Denomination 1.00 CHF
Number in set 4 (show set)
Layout/Format self adhesive booklet of 4 of 2 designs
Perforations 12.3 by 12.3
Stamp issuing authority La Poste
Printer Joh Enschedé
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