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.


Country / Post Sri Lanka
Date of Issue 2 February 2016
Primary theme Fauna (Birds - General)
Subject World Wetlands Day 2016 - Fulvous Whistling Duck (Dendrocygna bicolor)
Width 60.0 mm
Height 30.0 mm
Denomination 7.00 LKR
Number in set 4 (show set)
Layout/Format sheet of 20, miniature sheet of 1
Perforations 13.25 by 12
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka
Connect to the web shop of the issuing stamp authority