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 Costa Rica
Date of Issue 7 June 2005
Primary theme Science & Technology (Famous scientists)
Science & Technology (Physics & chemistry)
Subject International Year of Physics - Max Planck
Width 60.0 mm
Height 30.0 mm
Denomination 95 CRC
Number in set 2 (show set)
Layout/Format sheet of 10
Perforations 10.5 by 10.5
Stamp issuing authority Correos de Costa Rica SA
Printer GOZAKA
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