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 Bulgaria in 2011

The 2011 issuing programme is not available.
  1. Bg031.11-80
    Wns Number
    BG031.11
    Country / Post
    Bulgaria
    Date of Issue
    October 27, 2011
    Subject
    145 Years since the Construction of the Frist Railway Line in Bulgaria (Ruschuk-Varna)
  2. Bg032.11-80
    Wns Number
    BG032.11
    Country / Post
    Bulgaria
    Date of Issue
    October 28, 2011
    Subject
    Dogs - Cosmonauts
  3. Bg033.11-80
    Wns Number
    BG033.11
    Country / Post
    Bulgaria
    Date of Issue
    October 28, 2011
    Subject
    Dogs - Cosmonauts
  4. Bg034.11-80
    Wns Number
    BG034.11
    Country / Post
    Bulgaria
    Date of Issue
    October 28, 2011
    Subject
    Dogs - Cosmonauts
  5. Bg035.11-80
    Wns Number
    BG035.11
    Country / Post
    Bulgaria
    Date of Issue
    October 28, 2011
    Subject
    Dogs - Cosmonauts
  6. Bg036.11-80
    Wns Number
    BG036.11
    Country / Post
    Bulgaria
    Date of Issue
    October 28, 2011
    Subject
    Dogs - Cosmonauts
  7. Bg037.11-80
    Wns Number
    BG037.11
    Country / Post
    Bulgaria
    Date of Issue
    October 29, 2011
    Subject
    The First Bulgarians in the Dakar Rally
  8. Bg038.11-80
    Wns Number
    BG038.11
    Country / Post
    Bulgaria
    Date of Issue
    October 31, 2011
    Subject
    International Black Sea Action Day
  9. Bg039.11-80
    Wns Number
    BG039.11
    Country / Post
    Bulgaria
    Date of Issue
    October 31, 2011
    Subject
    International Black Sea Action Day
  10. Bg040.11-80
    Wns Number
    BG040.11
    Country / Post
    Bulgaria
    Date of Issue
    November 07, 2011
    Subject
    Centenary of Birth of Composer Yosif Tsankov