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.

IT001.11

Country / Post Italy
Date of Issue 7 January 2011
Primary theme National symbols (Flags)
Subject 150th Anniversary of the Unification of Italy dedicated to the Tricolour flag
Width 26.0 mm
Height 21.4 mm
Denomination 0.60 €
Number in set 2 (show set)
Layout/Format self adhesive sheet of 70
Perforations 11 by 11
Stamp issuing authority Poste Italiane
Printer IPZS