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.

MD028.18

Country / Post Moldova
Date of Issue 23 August 2018
Primary theme Fauna (Birds - General)
Subject Domestic Birds - Duck (Anas platyrhynchos)
Width 46.0 mm
Height 27.5 mm
Denomination 1.75 MDL
Number in set 4 (show set)
Layout/Format sheet of 8
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