Brass and white metal test frame

Brass and white metal test frame

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Science Museum Group
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Brass and white metal test frame, drop cell, independent eyes and bridge, right eye piece has rotating cell(?), both eye pieces graduated, English(?), 1900-1940

Details

Category:
Ophthalmology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A680900
Materials:
brass, metal, whitemetal and vulcanite
Measurements:
folded: length 178 mm
height 105 mm
type:
trial frames