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 in 2018 with theme "Christmas & Easter"

  1. Xc014.18-80
    Wns Number
    XC014.18
    Country / Post
    Andorra (S)
    Date of Issue
    November 08, 2018
    Subject
    Christmas - Popular Scences - Diorama of J. Bofill
  2. Si045.18-80
    Wns Number
    SI045.18
    Country / Post
    Slovenia
    Date of Issue
    November 09, 2018
    Subject
    New Year's Wassailers
  3. Si046.18-80
    Wns Number
    SI046.18
    Country / Post
    Slovenia
    Date of Issue
    November 09, 2018
    Subject
    Nativity of Christ
  4. Sk024.18-80
    Wns Number
    SK024.18
    Country / Post
    Slovakia
    Date of Issue
    November 09, 2018
    Subject
    The Christmas Mail 2018
  5. Sk025.18-80
    Wns Number
    SK025.18
    Country / Post
    Slovakia
    Date of Issue
    November 09, 2018
    Subject
    Christmas 2018 - Paraments - Liturgical Textiles
  6. Sk026.18-80
    Wns Number
    SK026.18
    Country / Post
    Slovakia
    Date of Issue
    November 09, 2018
    Subject
    Christmas 2018 - Paraments - Liturgical Textiles
  7. Mt049.18-80
    Wns Number
    MT049.18
    Country / Post
    Malta
    Date of Issue
    November 16, 2018
    Subject
    Christmas 2018 - St Helen's Basilica, Birkirkara
  8. Mt050.18-80
    Wns Number
    MT050.18
    Country / Post
    Malta
    Date of Issue
    November 16, 2018
    Subject
    Christmas 2018 - St Catherine's Parish Church, Żejtun
  9. Mt051.18-80
    Wns Number
    MT051.18
    Country / Post
    Malta
    Date of Issue
    November 16, 2018
    Subject
    Christmas 2018 - Basilica of the Nativity of Our Lady, Xagħra, Gozo
  10. Cl012.18-80
    Wns Number
    CL012.18
    Country / Post
    Chile
    Date of Issue
    November 20, 2018
    Subject
    Christmas 2018 - Children's Drawing Contest