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.

RO004.12

Country / Post Romania
Date of Issue 17 January 2012
Primary theme Flora (Flowers - General)
Subject Flora of Romania - Common Wood-Sorrel
Width 33.0 mm
Height 24.0 mm
Denomination 3.60 RON
Number in set 6 (show set)
Layout/Format sheet of 80, sheet of 8
Perforations 13.5 by 13.5
Stamp issuing authority Compania Nationala Posta Romana SA
Printer Fabrica de timbre
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