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.

PK002.04

Country / Post Pakistan
Date of Issue 28 January 2004
Primary theme Education
Subject Golden Jubilee of Sadiq Public School Bahawalpur
Width 34.0 mm
Height 29.0 mm
Denomination 4.00 PKR
Number in set 1
Layout/Format sheet
Perforations 14.1 by 14
Stamp issuing authority Pakistan Post Office
Printer Post Office Foundation Press Karachi