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.

SM035.14

Country / Post San Marino
Date of Issue 22 October 2014
Primary theme Architecture (Classical)
United Nations (UNESCO)
Environment & Conservation (World Heritage)
Subject UNESCO - World Heritage - Travel in Italy 02
Width 40.0 mm
Height 30.0 mm
Denomination 1.00 €
Number in set 4 (show set)
Layout/Format miniature sheet of 4 of 4 designs
Perforations 13 by 13.25
Stamp issuing authority République de Saint Marin
Printer Cartor Security Printing