Duo-Chrome Test Chart

Made:: 1920-1930 in United Kingdom

Duo-Chrome Test Chart
Science Museum Group
© The Board of Trustees of the Science Musuem

Bicycle lamp with duo-chrome test chart by Ever Ready Co.

Details

Category:: Ophthalmology

Object Number:: Y2000.176

Materials:: metal (unknown) and glass

Measurements:: overall (laid flat): 81 mm x 75 mm x 95 mm,

type:: ophthalmic instrument

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Duo-Chrome Test Chart

Details

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