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 San Marino
Date of Issue 13 November 2006
Primary theme Education (Universities)
Subject 500th Anniversary of the University of Urbino
Width 52.0 mm
Height 26.2 mm
Denomination 2.20 €
Number in set 1
Layout/Format sheet of 12
Perforations 13 by 13
Stamp issuing authority République de Saint Marin
Printer Cartor Security Printing