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3 itemsBausch & Lomb Abbe Refractometer Serial No. 380
- 1919 – 1926
A: Refractometer
Instrument has round cast iron base; on the base is a rectangular glass mirror mounted to allow rotation; a single black pillar supports the prism alidade, the black cylindrical telescope viewer, and…- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Refractometers, Optics