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 PT068.12

  1. Pt068.12-80
    Wns Number
    PT068.12
    Country / Post
    Portugal
    Date of Issue
    June 19, 2012
    Subject
    Olympic Games London 2012
  2. Pt069.12-80
    Wns Number
    PT069.12
    Country / Post
    Portugal
    Date of Issue
    June 19, 2012
    Subject
    Olympic Games London 2012
  3. Pt070.12-80
    Wns Number
    PT070.12
    Country / Post
    Portugal
    Date of Issue
    June 19, 2012
    Subject
    Paralympic Games London 2012
  4. Pt071.12-80
    Wns Number
    PT071.12
    Country / Post
    Portugal
    Date of Issue
    June 19, 2012
    Subject
    Paralympic Games London 2012