White metal trial frames

White metal trial frames

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White metal trial frames
Science Museum Group
The Board of Trustees of the Science Museum

White metal trial frames, partially hinged to allow lens inertion into cells (eye pieces not a complete circle of metal), English(?), 1900-1940

Details

Category:
Ophthalmology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A680918
Materials:
metal, white
type:
trial frames