R. Fuess Berlin #131

The Rosenbusch model c.1878

An example of the first type of petrological microscope

Petrological microscope: R.. Fuess Berlin #131. The Rosenbusch model c.1878 Petrological microscope: R.. Fuess Berlin #131. The Rosenbusch model microscope. c.1878

Rosenbusch Fuess microscope

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