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.

EE018.07

Country / Post Estonia
Date of Issue 2 July 2007
Primary theme Flora (Flowers - General)
Subject Definitive - Wig Knapweed
Width 23.5 mm
Height 23.5 mm
Denomination 1.10 EEK
Number in set 2 (show set)
Layout/Format self adhesive sheet of 25
Perforations 13 by 13
Stamp issuing authority Estonian Post
Printer AS VABA MAA Tallinn
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