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.

SM026.06

Country / Post San Marino
Date of Issue 21 August 2006
Primary theme Sport
Subject 125th Anniversary of the Founding of the International Gymnastics Federation
Width 30.0 mm
Height 40.0 mm
Denomination 0.15 €
Number in set 2 (show set)
Layout/Format sheet of 20
Perforations 13 by 13
Stamp issuing authority République de Saint Marin
Printer Cartor Security Printing