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 China (People's Rep) in 2012

The 2012 issuing programme is not available.
  1. Cn092.12-80
    Wns Number
    CN092.12
    Country / Post
    China (People's Rep)
    Date of Issue
    December 01, 2012
    Subject
    Confucius Institute
  2. Cn093.12-80
    Wns Number
    CN093.12
    Country / Post
    China (People's Rep)
    Date of Issue
    December 04, 2012
    Subject
    30th Anniversary of the Current Constitution published and implementation