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.

PL020.02

Country / Post Poland
Date of Issue 2 May 2002
Primary theme Telecommunications
Subject Radio Free Europe
Width 25.0 mm
Height 31.0 mm
Denomination 2.00 PLN
Number in set 1
Layout/Format sheet of 60
Perforations 11.7 by 11.5
Stamp issuing authority Polish Post
Printer
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