Oval blue bent glass spectacle lens

Oval blue bent glass spectacle lens, very dark tint.

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Oval blue bent glass spectacle lens, very dark tint.
Science Museum Group
© The Board of Trustees of the Science Museum

Oval blue bent glass spectacle lens, very dark tint.

Details

Category:
Optics
Object Number:
1921-323/88
Measurements:
overall: 47 x 37 mm
type:
ophthalmic lens
credit:
Dunscombe collection of spectacles