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 Montserrat in 2011

The 2011 issuing programme is not available.
  1. Ms001.11-80
    Wns Number
    MS001.11
    Country / Post
    Montserrat
    Date of Issue
    January 10, 2011
    Subject
    Sea Shells - Beaded Periwinkle
  2. Ms002.11-80
    Wns Number
    MS002.11
    Country / Post
    Montserrat
    Date of Issue
    January 10, 2011
    Subject
    Sea Shells - Green Star Shell
  3. Ms003.11-80
    Wns Number
    MS003.11
    Country / Post
    Montserrat
    Date of Issue
    January 10, 2011
    Subject
    Sea Shells - Smooth Scotch Bonnet
  4. Ms004.11-80
    Wns Number
    MS004.11
    Country / Post
    Montserrat
    Date of Issue
    January 10, 2011
    Subject
    Sea Shells - Calico Scallop
  5. Ms005.11-80
    Wns Number
    MS005.11
    Country / Post
    Montserrat
    Date of Issue
    January 10, 2011
    Subject
    Sea Shells - Hawk Wing Conch
  6. Ms006.11-80
    Wns Number
    MS006.11
    Country / Post
    Montserrat
    Date of Issue
    January 10, 2011
    Subject
    Sea Shells - Atlantic Partridge Tun
  7. Ms013.11-80
    Wns Number
    MS013.11
    Country / Post
    Montserrat
    Date of Issue
    March 15, 2011
    Subject
    Medicinal Plants - Anise
  8. Ms014.11-80
    Wns Number
    MS014.11
    Country / Post
    Montserrat
    Date of Issue
    March 15, 2011
    Subject
    Medicinal Plants - Lemon Grass
  9. Ms015.11-80
    Wns Number
    MS015.11
    Country / Post
    Montserrat
    Date of Issue
    March 15, 2011
    Subject
    Medicinal Plants - Vervain
  10. Ms016.11-80
    Wns Number
    MS016.11
    Country / Post
    Montserrat
    Date of Issue
    March 15, 2011
    Subject
    Medicinal Plants - Ram Goat Bush