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 SY023.09

  1. Sy019.09-80
    Wns Number
    SY019.09
    Country / Post
    Syrian Arab Republic
    Date of Issue
    December 31, 2009
    Subject
    Syrian Birds - Thrasher
  2. Sy020.09-80
    Wns Number
    SY020.09
    Country / Post
    Syrian Arab Republic
    Date of Issue
    December 31, 2009
    Subject
    Syrian Birds - Redstart
  3. Sy021.09-80
    Wns Number
    SY021.09
    Country / Post
    Syrian Arab Republic
    Date of Issue
    December 31, 2009
    Subject
    Syrian Birds - Blue headed Yellow Wagtail
  4. Sy022.09-80
    Wns Number
    SY022.09
    Country / Post
    Syrian Arab Republic
    Date of Issue
    December 31, 2009
    Subject
    Syrian Birds - Honeyeater
  5. Sy023.09-80
    Wns Number
    SY023.09
    Country / Post
    Syrian Arab Republic
    Date of Issue
    December 31, 2009
    Subject
    Syrian Birds - Syrian serin