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.

IT017.11

Country / Post Italy
Date of Issue 28 March 2011
Primary theme Post & Philately (Philatelic Exhibitions)
Subject Stamp Exhibition "Quel Magnifico Biennio 1859-1861"
Width 25.4 mm
Height 30.0 mm
Denomination 0.60 €
Number in set 1
Layout/Format self adhesive sheet of 70
Perforations 11 by 11
Stamp issuing authority Ministry of Economic Development
Printer IPZS