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.

SY018.09

Country / Post Syrian Arab Republic
Date of Issue 31 December 2009
Primary theme Flora (Trees)
Subject Tree Day
Width 52.0 mm
Height 37.0 mm
Denomination 15 SYP
Number in set 1
Layout/Format sheet
Perforations 13 by 13
Stamp issuing authority Syrian Arab Republic General Establishment of Posts
Printer