Bertrand type refractometer unsigned
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Science Museum Group
© The Board of Trustees of the Science Museum
Bertrand type refractometer unsigned, French, 1870-1893.
Details
- Category:
- Optics
- Object Number:
- 1893-15/1
- Materials:
- steel (metal), brass (copper, zinc alloy), glass, wood (unidentified), leather, paper (fibre product) and textile
- Measurements:
-
reftactometer: 30 mm x 56 mm x 25 mm, .078kg
- type:
- refractometer
