The 150th Anniversary of the Bulgarian Acedemy of Science 2019
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2019
The 150th Anniversary of the Bulgarian Acedemy of Science
7. October WM: None Sheetsize: 50 Design: Maya Staykova Perforation: 13
![[The 150th Anniversary of the Bulgarian Acedemy of Science, type HGR]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/HGR-s.jpg)
