Carl Zeiss, Jena Nr. 39881

Comparison Spectroscope c. 1930

 

Carl Zeiss, Jena Nr. 39881. Comparison Spectroscope c. 1930

 Carl Zeiss, Jena Nr. 39881. Comparison Spectroscope c. 1930

Carl Zeiss, Jena Nr. 39881. Comparison Spectroscope c. 1930

 

Carl Zeiss, Jena Nr. 39881. Comparison Spectroscope in case

 

From: The Spectroscope: its uses in general analytical chemistry by T. T. Baker, 1907

 

Comparison Spectroscope diagram

Carl Zeiss, Jena Nr. 39881. Comparison Spectroscope _catalog-mess485

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