Objective lens in brass cell of 3 3/4-inch diamete

Made:
1850-1900 in South Kensington

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Objective lens in brass cell of 3 3/4-inch diameter and 50-inch focal length, probably from a transit instrument used at the Imperial College observatory located on top of the Chemistry building from around 1900 to 1950s.

Details

Category:
Astronomy
Object Number:
2000-1467
Materials:
brass, glass and incomplete
type:
transit instrument
taxonomy:
  • component - object
  • furnishing and equipment
  • tools & equipment
  • scientific equipment
  • astronomical instrument
  • furnishing and equipment
  • tools & equipment
  • optical instrument
  • telescope
credit:
Imperial College of Science,Technology & Medicine (Spectroscopy Group)