Folding eyeglasses with oval lenses and adjusting springs

Tortoiseshell folding (?) eyeglasses with oval lenses and

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Tortoiseshell folding (?) eyeglasses with oval lenses and
Science Museum Group
© The Board of Trustees of the Science Museum

Tortoiseshell folding (?) eyeglasses with oval lenses and adjusting springs. Marked 'NB3'.

Details

Category:
Optics
Object Number:
1921-323/275
Materials:
tortoiseshell and complete
Measurements:
lenses: 28 mm,
overall (unfolded): 85 mm
type:
nose spectacles - pince nez
credit:
Dunscombe collection of spectacles