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.

CR010.16

Country / Post Costa Rica
Date of Issue 10 October 2016
Primary theme Literature, Press and Comics (Writers)
Subject National Writers - Aquileo Echeverría
Width 45.0 mm
Height 25.0 mm
Denomination 420 CRC
Number in set 2 (show set)
Layout/Format miniature sheet of 2 of 2 designs
Perforations 11 by 11
Stamp issuing authority Correos de Costa Rica SA
Printer Imprenta GOZAKA SA
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