White plano-concave spectacle lens

White plano-concave spectacle lens

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White plano-concave spectacle lens
Science Museum Group
© The Board of Trustees of the Science Museum

White plano-concave spectacle lens, designed to correct astigmatism, by M. W. Dunscombe, (?) Bristol, England, c. 1910.

Details

Category:
Optics
Object Number:
1921-323/35
Materials:
glass
Measurements:
overall: 41 mm x 42 mm x 2 mm, , .005kg
type:
ophthalmic lens
credit:
Dunscombe collection of spectacles