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.

RO028.18

Country / Post Romania
Date of Issue 20 March 2018
Primary theme Religions & beliefs (Christianity)
Subject Founders of the Great Union (I) - Cardinal Iuliu Hossu, Greek-Catholic bishop
Width 48.0 mm
Height 33.0 mm
Denomination 4.50 RON
Number in set 5 (show set)
Layout/Format sheet of 32 & 6
Perforations 13.5 by 13.5
Stamp issuing authority SC Romfilatelia SA
Printer Fabrica de timbre
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