Canadian spectacles with single piece side-arms

Canadian metal spectacles with single piece side-arms and Canadian metal spectacles with single piece side-arms and

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

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Canadian metal spectacles with single piece side-arms and
Science Museum Group
© The Board of Trustees of the Science Museum

Canadian metal spectacles with single piece side-arms and
Science Museum Group
© The Board of Trustees of the Science Museum

Canadian metal spectacles with single piece side-arms and oblong prism lenses marked '6[degrees]'.

Details

Category:
Optics
Object Number:
1921-323/230
Materials:
metal and complete
Measurements:
lenses: 40 mm x 28 mm
overall (folded): 127 mm
type:
spectacles
credit:
Dunscombe collection of spectacles