English nickel-plated brass spectacles with thick D-shaped lenses
English nickel-plated brass spectacles with thick D-shaped lenses and D-shaped hinged glass sides for protection against shot, c. 1880.
Details
- Category:
- Optics
- Object Number:
- 1921-323/218
- Materials:
- metal (unknown), copper (alloy), brass (copper, zinc alloy), nickel plated and glass
- Measurements:
-
overall (closed): 40 mm x 125 mm x 35 mm, , .015kg
- type:
- protective spectacles
- credit:
- Dunscombe collection of spectacles