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.

SM010.10

Country / Post San Marino
Date of Issue 9 February 2010
Primary theme Architecture (Classical)
Exhibitions, Fairs & Carnivals (Exhibitions)
Fine Arts (Sculpture)
Subject San Marino at the Expo 2010 Shanghai - The City State
Width 36.0 mm
Height 51.0 mm
Denomination 1.80 €
Number in set 4 (show set)
Layout/Format miniature sheet of 4 of 4 designs
Perforations 13.25 by 13.25
Stamp issuing authority République de Saint Marin
Printer Cartor Security Printing