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 Bolivia
Date of Issue 23 October 2006
Primary theme Aviation (Aircraft)
Aviation (Aviation Pioneers)
Subject Centenary of the First Flight of Santos Dumont
Width 42.5 mm
Height 31.5 mm
Denomination 1.50 BOB
Number in set 1
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority Empresa de Correos de Bolivia