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.


Country / Post Spain
Date of Issue 5 January 2015
Primary theme Science & Technology
Subject 75th Anniversary of the Spanish National Research Council (CSIC)
Width 34.5 mm
Height 24.5 mm
Denomination A2
Number in set 1
Layout/Format self adhesive sheet of 50
Perforations 13 by 13
Stamp issuing authority Correos Y Telegrafos SA
Printer RCM-FNMT
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