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 MX044.11

  1. Mx043.11-80
    Wns Number
    MX043.11
    Country / Post
    Mexico
    Date of Issue
    October 18, 2011
    Subject
    Health and Safety in Mexico
  2. Mx044.11-80
    Wns Number
    MX044.11
    Country / Post
    Mexico
    Date of Issue
    October 18, 2011
    Subject
    Health and Safety in Mexico
  3. Mx045.11-80
    Wns Number
    MX045.11
    Country / Post
    Mexico
    Date of Issue
    October 18, 2011
    Subject
    Health and Safety in Mexico
  4. Mx046.11-80
    Wns Number
    MX046.11
    Country / Post
    Mexico
    Date of Issue
    October 18, 2011
    Subject
    Health and Safety in Mexico
  5. Mx047.11-80
    Wns Number
    MX047.11
    Country / Post
    Mexico
    Date of Issue
    October 18, 2011
    Subject
    Health and Safety in Mexico
  6. Mx048.11-80
    Wns Number
    MX048.11
    Country / Post
    Mexico
    Date of Issue
    October 18, 2011
    Subject
    Health and Safety in Mexico