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.

FI006.12

Country / Post Finland
Date of Issue 23 January 2012
Primary theme History (Geographical history)
Architecture (Modern)
Subject World Design Capital Helsinki 2012 - Future City
Width 35.0 mm
Height 45.0 mm
Denomination 1st class
Number in set 8 (show set)
Layout/Format self adhesive booklet of 8 of 8 designs
Perforations 12 by 12
Stamp issuing authority Itella Corporation Finland
Printer Joh Enschedé Security Printers