Brass demonstration polariscope with biaxial crystal

Made:
1830-1880 in United Kingdom
Brass demonstration polariscope with biaxial crystal (calcite?)

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Brass demonstration polariscope with biaxial crystal (calcite?)
Science Museum Group
© The Board of Trustees of the Science Museum

Brass demonstration polariscope with biaxial crystal (calcite?), unsigned, British, 1830-1880. Once the property of Sylvanus P Thompson (1851-1916), professor of physics at the City and Guilds Technical College in Finsbury, England.

Details

Category:
Optics
Object Number:
1982-1550
Materials:
brass (copper, zinc alloy), glass and calcite
Measurements:
overall: Ht. 65 mm x Dia. 22 mm, Wt. 0.051kg
type:
polariscope and optical demonstration equipment
credit:
Aggs, G.