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 Switzerland in 2011

The 2011 issuing programme is not available.
  1. Ch001.11-80
    Wns Number
    CH001.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    Honey Bees
  2. Ch002.11-80
    Wns Number
    CH002.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    50 Years of the Cerebral Foundation
  3. Ch003.11-80
    Wns Number
    CH003.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    Festus and Mercury
  4. Ch004.11-80
    Wns Number
    CH004.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    14th World Gymnaestrada Lausanne 2011
  5. Ch005.11-80
    Wns Number
    CH005.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    50 Years of WWF
  6. Ch006.11-80
    Wns Number
    CH006.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    International Year of Chemistry 2011
  7. Ch007.11-80
    Wns Number
    CH007.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    100th Anniversary of Max Frisch
  8. Ch008.11-80
    Wns Number
    CH008.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    City of Neuchatel Millennium
  9. Ch009.11-80
    Wns Number
    CH009.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    Vegetable Blossoms - Zucchini
  10. Ch010.11-80
    Wns Number
    CH010.11
    Country / Post
    Switzerland
    Date of Issue
    March 03, 2011
    Subject
    Vegetable Blossoms - Snow Pea

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