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.

Stamps issued with MX065.09

  1. Mx065.09-80
    Wns Number
    MX065.09
    Country / Post
    Mexico
    Date of Issue
    December 16, 2009
    Subject
    Saving Energy at Home
  2. Mx066.09-80
    Wns Number
    MX066.09
    Country / Post
    Mexico
    Date of Issue
    December 16, 2009
    Subject
    Saving Energy at Home
  3. Mx067.09-80
    Wns Number
    MX067.09
    Country / Post
    Mexico
    Date of Issue
    December 16, 2009
    Subject
    Saving Energy at Home