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.

EE020.08

Country / Post Estonia
Date of Issue 31 May 2008
Primary theme Military (Military events)
Subject 150th Anniversary of Peasant War at Mahtra
Width 33.0 mm
Height 27.5 mm
Denomination 5.50 EEK
Number in set 1
Layout/Format sheet of 20
Perforations 14 by 13.75
Stamp issuing authority Estonian Post
Printer AS VABA MAA Tallinn
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