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.

NR021.05

Country / Post Nauru
Date of Issue 12 September 2005
Primary theme International Organisations (Rotary International)
Subject Centenary of Rotary International
Width 30.0 mm
Height 37.0 mm
Denomination 2.50 AUD
Number in set 1
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority Nauru Post & Philatelic
Printer