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.

NI005.04

Country / Post Nicaragua
Date of Issue 30 June 2004
Primary theme Environment & Conservation
Subject America UPAEP - Protection of the Environment - Cerro Kilambé Natural Reserve
Width 40.0 mm
Height 30.0 mm
Denomination 7.50 NIO
Number in set 2 (show set)
Layout/Format sheet of 50
Perforations 13 by 13.4
Stamp issuing authority Correos De Nicaragua
Printer Cartor Security Printing
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