It is the Otto-Mader Entwicklungdwerk factory in Dessau.

-In 1939, by appointment of the German RLM ministry, Otto Mader received Adolf Mueller's work on turbojets that were made at the Magdenburger Werkzeugmaschinenfabrik.

-Franz Anselm intervened, and continued the work at Otto-Mader from 1939.

"Magdenburg Project"

-These Mueller works were based on those that Professor Wagner had done at Junkers Flugzeugwerke since 1936, following the Magdenburg experiments. An example of this was the Jumo-006 (RTO).

-Finally, Mueller went to Heinkel where he continued the works based on those started in Magdenburg.