Re: Glider part? Company Luft - Stuttgart?
As a glider pilot I flew many times with various types of the barographs on board of my glider. Those instruments I know represented 1940s-1950s era. In historical aspect I am also interested in this type of instrument. Frankly speaking I doubt that your instrument could be a hybrid of altimeter and barograph. I do not have a picture of WWII era German barograph but am posting below the US laboratory of the barographs. This image was taken in 1941. The barographs design was similar then all over the world.
If you are interested in I may post two images of late 1930s barographs. One of them manufactured by the Askania company, the other one by Bosch und Bosch.
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