Oval white convex bi-focal spectacle lens, 1845.

Made:
1845
Oval white convex bi-focal spectacle lens, 1845.

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Oval white convex bi-focal spectacle lens, 1845.
Science Museum Group
© The Board of Trustees of the Science Museum

Oval white convex bi-focal spectacle lens, 1845.

Details

Category:
Optics
Object Number:
1921-323/47
Measurements:
overall: 50 x 40 mm
type:
ophthalmic lens
credit:
Dunscombe collection of spectacles