Now showing: Bulgaria - Unissued (1927 - 1950) - 1 stamps.
WM: Žádný Perforation: 11½
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![[Airmail - Unissued, type A]](https://www.stampworld.com/media/catalogue/Bulgaria/Unissued/A-s.jpg)
![[Airmail - Unissued, type B]](https://www.stampworld.com/media/catalogue/Bulgaria/Unissued/B-s.jpg)
![[Airmail - Unissued, type C]](https://www.stampworld.com/media/catalogue/Bulgaria/Unissued/C-s.jpg)
