Bertrand type refractometer, in case

Made:
1870-1893 in France
maker:
Émile Bertrand

Bertrand type refractometer with small bottle of refractive liquid separate, in case, unsigned, French , 1870-1893.

Details

Category:
Optics
Object Number:
1893-15
Materials:
brass (copper, zinc alloy), glass, leather, paper (fibre product), steel (metal), textile and wood (unidentified)
Measurements:
case: 44 mm x 72 mm x 39 mm,
bottle: 35 mm x 12 mm,
reftactometer: 30 mm x 56 mm x 25 mm,
type:
refractometer
taxonomy:
  • furnishing and equipment
  • container - receptacle
  • vessel
  • component - object
  • instrument component
  • furnishing and equipment
  • measuring device - instrument
credit:
Pierrotet, P.