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. Bg011.11-80
    Wns Number
    BG011.11
    Country / Post
    Bulgaria
    Date of Issue
    May 02, 2011
    Subject
    20th Anniversary of the Commission on Protection of Competition
  2. Bg012.11-80
    Wns Number
    BG012.11
    Country / Post
    Bulgaria
    Date of Issue
    May 27, 2011
    Subject
    20th Anniversary of Philatelic Publications in Bulgaria - Year of the Rabbit
  3. Bg013.11-80
    Wns Number
    BG013.11
    Country / Post
    Bulgaria
    Date of Issue
    June 10, 2011
    Subject
    Regions of Bulgaria - The Northcentral Region
  4. Bg014.11-80
    Wns Number
    BG014.11
    Country / Post
    Bulgaria
    Date of Issue
    June 10, 2011
    Subject
    Regions of Bulgaria - The Northcentral Region
  5. Bg015.11-80
    Wns Number
    BG015.11
    Country / Post
    Bulgaria
    Date of Issue
    June 10, 2011
    Subject
    Regions of Bulgaria - The Northcentral Region
  6. Bg016.11-80
    Wns Number
    BG016.11
    Country / Post
    Bulgaria
    Date of Issue
    June 10, 2011
    Subject
    Regions of Bulgaria - The Northcentral Region
  7. Bg017.11-80
    Wns Number
    BG017.11
    Country / Post
    Bulgaria
    Date of Issue
    June 29, 2011
    Subject
    Museum of the Danube - Fishing - Tutrakan
  8. Bg018.11-80
    Wns Number
    BG018.11
    Country / Post
    Bulgaria
    Date of Issue
    June 29, 2011
    Subject
    Museum of the Danube - Fishing - Tutrakan
  9. Bg019.11-80
    Wns Number
    BG019.11
    Country / Post
    Bulgaria
    Date of Issue
    June 29, 2011
    Subject
    Museum of the Danube - Fishing - Tutrakan
  10. Bg020.11-80
    Wns Number
    BG020.11
    Country / Post
    Bulgaria
    Date of Issue
    June 29, 2011
    Subject
    Museum of the Danube - Fishing - Tutrakan