Glass triangular prism, from artillery dial gun sight

Made:: 1930-1950 in United Kingdom

$Triangular glass erecting prism (refracting angle 90?)$

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Triangular glass erecting prism (refracting angle 90?)
Science Museum Group
© The Board of Trustees of the Science Museum

Triangular glass erecting prism (refracting angle 90º), from British No.7 artillery dial gun sight, unsigned, 1930-1930.

Details

Category:: Optics

Object Number:: 1955-317

Materials:: glass

Measurements:: overall: 23 mm x 25 mm x 23 mm, Wt. 0.018kg

type:: erecting prism and component - object

credit:: Banfield, Arthur Clive

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Glass triangular prism, from artillery dial gun sight

Details

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