Ophthalmic lens blank in Slimline Brown 730 high-index glass refractive index 1.8

Made:
1986-1987 in St Asaph
maker:
Chance-Pilkington

Ophthalmic lens blank in Slimline Brown 730 high-index glass refractive index 1.8, brown tint, by Chance-Pilkington, St Asaph, Denbighshire, Wales, United Kingdom, 1986-1987

Details

Category:
Optics
Object Number:
1987-25
Materials:
glass
Measurements:
overall: 12 mm 65 mm, .063kg
type:
ophthalmic lens blank
credit:
Chance-Pilkington