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.

EE019.09

Country / Post Estonia
Date of Issue 22 October 2009
Primary theme Engineering (Civil & Mechanical)
Energy (Wind)
Subject Estonian Mills - Angla Windmill
Width 26.0 mm
Height 36.0 mm
Denomination 5.50 EEK
Number in set 1
Layout/Format sheet of 10
Perforations 13.75 by 14
Stamp issuing authority Estonian Post
Printer AS VABA MAA Tallinn
Connect to the web shop of the issuing stamp authority