Pivot eyeglasses with double-action patent spring

Made:
1854
Tortoiseshell pivot eyeglasses with double-action patent(?) Tortoiseshell pivot eyeglasses with double-action patent(?)

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Tortoiseshell pivot eyeglasses with double-action patent(?)
Science Museum Group
© The Board of Trustees of the Science Museum

Tortoiseshell pivot eyeglasses with double-action patent(?)
Science Museum Group
© The Board of Trustees of the Science Museum

Tortoiseshell pivot eyeglasses with double-action patent(?) spring. Frame is broken. Dated 1854.

Details

Category:
Optics
Object Number:
1921-323/260
Materials:
tortoiseshell and complete
Measurements:
overall: 80 x 35 mm
type:
hand spectacles
credit:
Dunscombe collection of spectacles