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.

CH029.05

Country / Post Switzerland
Date of Issue 6 September 2005
Primary theme Economy & Industry
Science & Technology (Time measurement)
Subject Traditional Swiss products - Watches
Width 33.0 mm
Height 28.0 mm
Denomination 1.00 CHF
Number in set 2 (show set)
Layout/Format sheet of 20
Perforations 13.5 by 13.25
Stamp issuing authority La Poste
Printer Cartor Security Printing
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