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.

BO041.06

Country / Post Bolivia
Date of Issue 4 December 2006
Primary theme Minerology & Geology (Mountains & Geological features)
Subject Deserts and Desertification
Width 42.5 mm
Height 31.5 mm
Denomination 1.50 BOB
Number in set 4 (show set)
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority Empresa de Correos de Bolivia
Printer