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 18 April 2016
Primary theme Politics & Government (Politicians)
Subject Centenary of Birth of José Joaquín Trejos Fernández
Width 40.0 mm
Height 30.0 mm
Denomination 1950 CRC
Number in set 1
Layout/Format miniature sheet of 1
Perforations 11 by 11
Stamp issuing authority Correos de Costa Rica SA
Printer Imprenta GOZAKA SA
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