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.

BO028.06

Country / Post Bolivia
Date of Issue 24 November 2006
Primary theme History (Geographical history)
Subject Centenary of the Foundation of Bahia - Cobija
Width 31.5 mm
Height 42.5 mm
Denomination 2.50 BOB
Number in set 7 (show set)
Layout/Format sheet
Perforations 14 by 14
Stamp issuing authority Empresa de Correos de Bolivia
Printer