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 14 January 2005
Primary theme Fauna (Birds - General)
Subject Newly Immigrated Bird Species - The Grey Heron
Width 31.6 mm
Height 36.0 mm
Denomination 4.00 €
Number in set 3 (show set)
Layout/Format sheet of 30
Perforations 13 by 13
Stamp issuing authority Aland Post
Printer BDT International Security Printing Ltd