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 Montenegro with theme "Birds - General"

  1. Xi007.07-80
    Wns Number
    XI007.07
    Country / Post
    Montenegro
    Date of Issue
    May 11, 2007
    Subject
    Grey Gull
  2. Xi002.07-80
    Wns Number
    XI002.07
    Country / Post
    Montenegro
    Date of Issue
    February 07, 2007
    Subject
    Protected Species - Pelican