Round blue deep double concave spectacle lens with ground edges

PART OF:: Display board of spectacles and lenses, c.1921

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Round blue deep double concave spectacle lens with ground edges
Science Museum Group
© The Board of Trustees of the Science Museum

Round blue deep double concave spectacle lens with ground edges (for correction of myopia).

Details

Category:: Optics

Object Number:: 1921-323/18

Measurements:: overall: 37 mm

type:: ophthalmic lens

credit:: Dunscombe collection of spectacles

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