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 Mexico in 2005

The 2005 issuing programme is not available.
  1. Mx077.05-80
    Wns Number
    MX077.05
    Country / Post
    Mexico
    Date of Issue
    December 20, 2005
    Subject
    Christmas 2005
  2. Mx078.05-80
    Wns Number
    MX078.05
    Country / Post
    Mexico
    Date of Issue
    December 20, 2005
    Subject
    Christmas 2005
  3. Mx083.05-80
    Wns Number
    MX083.05
    Country / Post
    Mexico
    Date of Issue
    December 22, 2005
    Subject
    90 Years of Journalism in Mexico