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 Saudi Arabia
Date of Issue 30 March 2003
Primary theme Environment & Conservation
Subject Rationalization of Water Resources - water is an invaluable commodity
Width 30.0 mm
Height 40.0 mm
Denomination 1 SAR
Number in set 2 (show set)
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority Saudi Post Corporation
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