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.


Country / Post Aland Islands
Date of Issue 23 April 2004
Primary theme Transportation (Ships & Navigation)
Subject President Mauno Koivisto's Åland
Width 31.5 mm
Height 36.5 mm
Denomination 0.90 €
Number in set 1
Layout/Format sheet of 30
Perforations 12.6 by 12.6
Stamp issuing authority Aland Post
Printer Cartor Security Printing