Duo-Chrome Test Chart

Made:
1920-1930 in United Kingdom
Duo-Chrome Test Chart

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License

Science Museum Group
© The Board of Trustees of the Science Museum

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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