Abbe crystal refractometer by Carl Zeiss
Abbe crystal refractometer by Carl Zeiss, Jena in Germany, 1898. A metalic circular eliment with numbers around one half and an inscription on the central part. Attached by a central axle.
Abbe crystal refractometer by Carl Zeiss, Jena in Germany, 1898
Abbe crystal refractometer by Carl Zeiss, Jena in Germany, 1898. A metalic circular eliment with numbers around one half and an inscription on the central part. Attached by a central axle.
Abbe crystal refractometer by Carl Zeiss, Jena in Germany, 1898. A stand with an attachment on, the stand has a circular base with a metal rod protruding vertically out of the centre. The attachment can be adjusted using a screw. The attachment itself is circular attached to a bracket with measurements around the outside and a element protruding from the centre.
Cabinet for Abbe crystal refractometer by Carl Zeiss, Jena in Germany, 1898.