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.

AR013.02

Country / Post Argentina
Date of Issue 11 May 2002
Primary theme Minerology & Geology
Subject 150 years since birth of Dr Francisco P Moreno - Mount Fitz Roy
Width 34.0 mm
Height 43.5 mm
Denomination 0.50 ARS
Number in set 2 (show set)
Layout/Format sheet of 20
Perforations 13.5 by 13.5
Stamp issuing authority Correo Argentino SA
Printer Letra Viva SA, Buenos Aires
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