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 NI003.04

  1. Ni002.04-80
    Wns Number
    NI002.04
    Country / Post
    Nicaragua
    Date of Issue
    June 24, 2004
    Subject
    Flora of Nicaragua - Tabebuia rosea
  2. Ni003.04-80
    Wns Number
    NI003.04
    Country / Post
    Nicaragua
    Date of Issue
    June 24, 2004
    Subject
    Flora of Nicaragua - Cassia fistula
  3. Ni004.04-80
    Wns Number
    NI004.04
    Country / Post
    Nicaragua
    Date of Issue
    June 24, 2004
    Subject
    Flora of Nicaragua - Delonix regia