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 8 July 2015
Primary theme History (Archeology)
Subject 125th Anniversary of the Department of Archeology
Width 41.0 mm
Height 30.0 mm
Denomination 10.00 LKR
Number in set 1
Layout/Format sheet of 20
Perforations 13.75 by 14
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka