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.

ET031.16

Country / Post Ethiopia
Date of Issue 6 November 2016
Primary theme Politics & Government (Independence)
Subject 75th Anniversary of Ethiopian Patriots Victory
Width 45.0 mm
Height 35.0 mm
Denomination 1.00 ETB
Number in set 6 (show set)
Layout/Format sheet
Perforations 13.5 by 13.5
Stamp issuing authority Ethiopian Postal Service
Printer Joh Enschedé Security Printers