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.

EE012.04

Country / Post Estonia
Date of Issue 4 May 2004
Primary theme EUROPA
Transportation (Ships & Navigation)
Subject Europa 2004 - Leisure
Width 70.5 mm
Height 30.0 mm
Denomination 6.50 EEK
Number in set 1
Layout/Format sheet of 10
Perforations 13 by 13
Stamp issuing authority Estonian Post
Printer AS VABA MAA Tallinn
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