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.

AO005.02

Country / Post Angola
Date of Issue 8 January 2002
Primary theme Mankind
Subject Masks - Likisi-Cinganji
Width 30.0 mm
Height 40.0 mm
Denomination 18 AOA
Number in set 6 (show set)
Layout/Format sheet of 10
Perforations 13.3 by 13.6
Stamp issuing authority Empresa Nacional de Correios e Telegrafos de Angola
Printer Cartor Security Printing