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.

LK010.14

Country / Post Sri Lanka
Date of Issue 7 May 2014
Primary theme Mankind (Children)
Subject World Conference on Youth 2014 Sri Lanka
Width 41.0 mm
Height 30.0 mm
Denomination 5.00 LKR
Number in set 1
Layout/Format sheet of 20
Perforations 12.75 by 13.25
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka