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.

LK006.15

Country / Post Sri Lanka
Date of Issue 20 April 2015
Primary theme Exhibitions, Fairs & Carnivals (Carnivals)
Subject Vesak 2015
Width 41.0 mm
Height 30.0 mm
Denomination 50.00 LKR
Number in set 3 (show set)
Layout/Format sheet of 20, miniature sheet of 3 of 3 designs
Perforations 13.5 by 14
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka