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.


Country / Post Macao, China
Date of Issue 28 May 2003
Primary theme Medicine
Science & Technology
Subject Traditional Chinese Medicine
Width 40.0 mm
Height 30.0 mm
Denomination 8.00 MOP
Number in set 5 (show set)
Layout/Format miniature sheet of 1
Perforations 13.9 by 14
Stamp issuing authority Macao Post
Printer Österreichische Staatsdruckerei
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