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.

EE020.09

Country / Post Estonia
Date of Issue 5 November 2009
Primary theme Architecture (Classical)
Subject Saku Hall
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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