Safety spectacles to BS 2092, with 30 segment bifocals

Made:
1965-1975 in England
Safety spectacles to BS 2092, with toughened lenses

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

Safety spectacles to BS 2092, with toughened lenses
Science Museum Group
© The Board of Trustees of the Science Museum

Safety spectacles to BS 2092, with toughened lenses, and 30 segment bifocals, unsigned, England, United Kingdom, 1965-1975

Details

Category:
Optics
Object Number:
1983-706
Materials:
steel (metal), brass (copper, zinc alloy) and plastic (unidentified)
Measurements:
overall (closed): 28 mm x 140 mm x 60 mm, .0554kg
type:
protective spectacles
credit:
Wigmore, V.