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.

SC005.11

Country / Post Seychelles
Date of Issue 11 November 2011
Primary theme Architecture (Classical)
Politics & Government
Subject 100th Anniversary of the State House
Width 42.0 mm
Height 28.0 mm
Denomination 3.50 SCR
Number in set 1
Layout/Format sheet of 50
Perforations 14 by 14
Stamp issuing authority Postal Services Division of Seychelles
Printer BDT International Security Printing Ltd