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.

SE044.12

Country / Post Sweden
Date of Issue 16 August 2012
Primary theme Literature, Press and Comics (Calligraphy)
Literature, Press and Comics (Writers)
Subject Write!
Width 26.0 mm
Height 31.25 mm
Denomination Brev
Number in set 4 (show set)
Layout/Format self adhesive sheet of 10 of 4 designs
Perforations 12 by imperf
Stamp issuing authority Posten Sverige AB
Printer Sweden Post Stamps Security Printing Works
Connect to the web shop of the issuing stamp authority