Double optometer, patented by Davidson

Double optometer, patented by Davidson

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Double optometer, patented by Davidson
Science Museum Group
The Board of Trustees of the Science Museum

Double optometer, patented by Davidson

Details

Category:
Ophthalmology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A124193
Materials:
brass and mahogany
type:
optometers
credit:
Glendining