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.

ES029.11

Country / Post Spain
Date of Issue 18 February 2011
Primary theme Politics & Government
Science & Technology (Information Technology)
Subject Civic Values - Respect on the Net
Width 40.9 mm
Height 28.8 mm
Denomination 0.35 €
Number in set 4 (show set)
Layout/Format self adhesive sheet of 25
Perforations 14 by 14
Stamp issuing authority Correos Y Telegrafos SA
Printer RCM-FNMT
Connect to the web shop of the issuing stamp authority