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.

MD021.12

Country / Post Moldova
Date of Issue 20 March 2012
Primary theme Olympic Games (Summer Olympics)
Subject Olympic Games London 2012 - Wrestling
Width 46.0 mm
Height 27.5 mm
Denomination 4.50 MDL
Number in set 2 (show set)
Layout/Format sheet of 10
Perforations 14 by 14.5
Stamp issuing authority Ministére de la technologie de l’information et des communications Republique de Moldova
Printer Printing House Nova Imprim Chisinau Moldova