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.

All registered stamps issued by Cameroon in 2009

The 2009 issuing programme is not available.
  1. Cm001.09-80
    Wns Number
    CM001.09
    Country / Post
    Cameroon
    Date of Issue
    March 17, 2009
    Subject
    Official and Apostolic Visit of His Holiness Pope Benedict in Cameroon
  2. Cm002.09-80
    Wns Number
    CM002.09
    Country / Post
    Cameroon
    Date of Issue
    March 17, 2009
    Subject
    Official and Apostolic Visit of His Holiness Pope Benedict in Cameroon