English 'invisible cemented' bifocal spectacles with oval lenses and round segments

Made:
1899 in England
English 'invisible cemented' bifocal spectacles with oval

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

Buy this image as a print 

Buy

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

License

English 'invisible cemented' bifocal spectacles with oval
Science Museum Group
© The Board of Trustees of the Science Museum

English 'invisible cemented' bifocal spectacles with oval lenses and round segments. Patent No. 10773, in 1899.

Details

Category:
Optics
Object Number:
1921-323/193
Materials:
steel (metal) and glass
Measurements:
overall: 35 mm x 155 mm x 30 mm, , .015kg
type:
spectacles
credit:
Dunscombe collection of spectacles