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Pedro Hermann Blumenau returned to Berlin after his assignment in the Klein expedition. According to documents from the Political Archive of the Foreign Office dated 26 Jan 1916, Blumenau was later assigned to Deutsche Erdöl A.G.. After a stay as a technical manager of an office in Bulgaria he died on 3.7.1917. of a lung stroke in Istanbul.
Speaker: Petra Nachtmanova Image: Collage from two documents Source: Political Archive of the German Foreign Office
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