The 70th Anniversary of Bulgarian Civil Aviation 2017
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2017
The 70th Anniversary of Bulgarian Civil Aviation
22. March WM: None Sheetsize: 20 Design: Svetlin Balezdrov Engraving: Lithographie Perforation: 13¼ x 13
![[The 70th Anniversary of Bulgarian Civil Aviation, type HBU]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/HBU-s.jpg)
