Oval white 'Strubin' cemented bi-focal spectacle lens first

Oval white 'Strubin' cemented bi-focal spectacle lens first made 1891. Known in England as the 'The Dunscombe' Invisible Bi-focal Lens.

Collection
Science Museum
Inventory Number
3160130
Title
Oval white 'Strubin' cemented bi-focal spectacle lens first
Object Type
PhysicalObject
Measurements
- overall: 40 x 33 mm

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