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 Aland Islands with theme "Birds - General"

  1. Ax003.05-80
    Wns Number
    AX003.05
    Country / Post
    Aland Islands
    Date of Issue
    January 14, 2005
    Subject
    Newly Immigrated Bird Species - The Grey Heron
  2. Ax001.05-80
    Wns Number
    AX001.05
    Country / Post
    Aland Islands
    Date of Issue
    January 14, 2005
    Subject
    Newly Immigrated Bird Species - The Greater Cormorant