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.

RO051.18

Country / Post Romania
Date of Issue 27 April 2018
Primary theme Fine Arts (Painting)
Subject The Bucharest Municipality Pinacotheque, 85 Years - 'Zinnia' (Carciumarese), painting by Gheorghe Petrașcu
Width 52.0 mm
Height 42.0 mm
Denomination 4.00 RON
Number in set 4 (show set)
Layout/Format sheet of 20 & 5
Perforations 14 by 14
Stamp issuing authority SC Romfilatelia SA
Printer Fabrica de timbre
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