Half-frost trial lens mounted in nickel plated(?)

Half-frost trial lens mounted in nickel plated(?) ring with

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Half-frost trial lens mounted in nickel plated(?) ring with
Science Museum Group
The Board of Trustees of the Science Museum

Half-frost trial lens mounted in nickel plated(?) ring with handle, Bickerton collection, English(?), 1891-1940

Details

Category:
Ophthalmology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A680552
Materials:
glass and metal (nickel plated)
type:
trial lenses