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.

IO017.07

Country / Post British Indian Ocean Territories
Date of Issue 1 October 2007
Primary theme Fauna (Birds - General)
Subject Birdlife International IV - Pomarine Skua
Width 40.0 mm
Height 31.5 mm
Denomination 0.54 GBP
Number in set 6 (show set)
Layout/Format sheet of 20
Perforations 12.5 by 12.5
Stamp issuing authority British Indian Ocean Territory Administration
Printer