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.

SM018.06

Country / Post San Marino
Date of Issue 19 June 2006
Primary theme EUROPA
Subject Europa - Integration
Width 40.0 mm
Height 30.0 mm
Denomination 0.62 €
Number in set 2 (show set)
Layout/Format sheet of 20
Perforations 13 by 13
Stamp issuing authority République de Saint Marin
Printer ITVF Périgueux - France