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.

GT010.15

Country / Post Guatemala
Date of Issue 25 September 2015
Primary theme Fauna (Fish)
Subject Critically Endangered Indo-American Species - Stoplight Parrotfish (Sparisoma viride)
Width 50.0 mm
Height 35.0 mm
Denomination 6.50 GTQ
Number in set 4 (show set)
Layout/Format miniature sheet of 4 of 4 designs, sheet of 25
Perforations 12.5 by 12.5
Stamp issuing authority Correo de Guatemala SA
Printer Taller Nacional de Grabados en Acero
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