Square 'Kryptok' fused slab and segment
Square 'Kryptok' fused slab and segment, amethyst tint, stage in making bi-focal spectacle lens.
Details
- Category:
- Optics
- Object Number:
- 1921-323/63
- Measurements:
-
overall: 45 x 45 mm
- type:
- ophthalmic lens
- credit:
- Dunscombe collection of spectacles