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 Nigeria
Date of Issue 10 May 2002
Primary theme Flora
Agriculture & Food (Crops & Farming)
Subject Cash Crops - Maize
Width 40.0 mm
Height 24.0 mm
Denomination 50.00 NGN
Number in set 4 (show set)
Layout/Format sheet of 50
Perforations 13 by 13
Stamp issuing authority Nigerian Postal Service
Printer Nigerian Security Printing & Minting Co Ltd