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.

OM006.12

Country / Post Oman
Date of Issue 23 July 2012
Primary theme Architecture (Classical)
Theatre & Cinema (Theatres)
Tourism (Tourist destinations)
Subject Muscat - Arab Tourism Capital 2012 - Royal Opera House Muscat
Width 40.0 mm
Height 30.0 mm
Denomination 0.50 OMR
Number in set 6 (show set)
Layout/Format miniature sheet of 6 of 6 designs
Perforations 13.5 by 13.5
Stamp issuing authority Ministry of Transport & Communications Sultanate of Oman
Printer Cartor
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