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.

EE009.07

Country / Post Estonia
Date of Issue 5 April 2007
Primary theme Fauna (Swans)
Subject Bird of the Year -Swan
Width 41.5 mm
Height 40.5 mm
Denomination 4.40 EEK
Number in set 1
Layout/Format sheet of 20
Perforations 13 by 13
Stamp issuing authority Estonian Post
Printer AS VABA MAA Tallinn
Connect to the web shop of the issuing stamp authority