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 SM004.06

  1. Sm003.06-80
    Wns Number
    SM003.06
    Country / Post
    San Marino
    Date of Issue
    February 01, 2006
    Subject
    100th Anniversary of Arengo of Patriarchs
  2. Sm004.06-80
    Wns Number
    SM004.06
    Country / Post
    San Marino
    Date of Issue
    February 01, 2006
    Subject
    100th Anniversary of Arengo of Patriarchs
  3. Sm005.06-80
    Wns Number
    SM005.06
    Country / Post
    San Marino
    Date of Issue
    February 01, 2006
    Subject
    100th Anniversary of Arengo of Patriarchs