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.

AZ010.13

Country / Post Azerbaijan
Date of Issue 10 April 2013
Primary theme Science & Technology
Subject 20th Anniversary of the IAAS
Width 28.0 mm
Height 30.0 mm
Denomination 0.20 AZN
Number in set 1
Layout/Format sheet of 42
Perforations 14.25 by 14
Stamp issuing authority Azermarka
Printer Belarus Printing House
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