Sýni: Búlgaría - Venjuleg frímerki (1930 - 1939) - 3 frímerki.
9. maí WM: Ekkert Götun: 11½
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![[Exhibition of Airmail Postage Strasbourg - Airplane over City, tegund DK]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/DK-s.jpg)
![[Exhibition of Airmail Postage Strasbourg - Airplane over City, tegund DK1]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/DK1-s.jpg)
![[Exhibition of Airmail Postage Strasbourg - Airplane over City, tegund DK2]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/DK2-s.jpg)
