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.

CH011.11

Country / Post Switzerland
Date of Issue 3 March 2011
Primary theme Flora (Vegetables)
Subject Vegetable Blossoms - Wild Garlic
Width 33.0 mm
Height 28.0 mm
Denomination 1.10 CHF
Number in set 4 (show set)
Layout/Format self adhesive sheet of 50 of 4 designs, self adhesive sheet of 10
Perforations 13.5 by 13.5
Stamp issuing authority La Poste
Printer Joh Enschedé
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