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.

LK050.07

Country / Post Sri Lanka
Date of Issue 31 October 2007
Primary theme Fauna (Mammals)
Environment & Conservation (National Parks)
Subject Udawalawa National Park - Common Langur
Width 40.0 mm
Height 30.5 mm
Denomination 45.00 LKR
Number in set 5 (show set)
Layout/Format sheet of 100, miniature sheet of 2 of 2 designs
Perforations 14 by 14
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka
Connect to the web shop of the issuing stamp authority