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 28 February 2014
Primary theme Engineering (Civil & Mechanical)
Transportation (Rail) (Locomotive & trains)
Subject Civil Engineering Marvels of the Sri Lankan Railway
Width 40.0 mm
Height 40.0 mm
Denomination 5.00 LKR
Number in set 2 (show set)
Layout/Format sheet of 20
Perforations 13 by 13
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka