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.

RS009.09

Country / Post Serbia
Date of Issue 2 March 2009
Primary theme Fauna (Birds - General)
Subject Joint Issue with Bulgaria - Ecology - Balkan Mountains - Monticola saxatilis
Width 43.5 mm
Height 35.0 mm
Denomination 46 CSD
Number in set 2 (show set)
Layout/Format miniature sheet of 2 of 2 designs
Perforations 13.75 by 13.75
Stamp issuing authority Jugomarka
Printer Forum Novi Sad