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.

MT025.10

Country / Post Malta
Date of Issue 19 October 2010
Primary theme Minerology & Geology (Mountains & Geological features)
Geography & Meteorology (Seas, lakes & rivers)
Subject Treasures of Malta - Natural Treasures - Filfla
Width 31.0 mm
Height 44.0 mm
Denomination 1.16 €
Number in set 4 (show set)
Layout/Format sheet of 10
Perforations 13.9 by 14
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