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 Andorra (S)
Date of Issue 9 February 2009
Primary theme Education (Schools)
Subject 25th Anniversary of Andorra's School
Width 28.8 mm
Height 40.9 mm
Denomination 0.62 €
Number in set 1
Layout/Format sheet of 25
Perforations 14 by 14
Stamp issuing authority Correos Y Telegrafos SA
Connect to the web shop of the issuing stamp authority