Image
Category
Collection
Maker
Object type
Place
Material
Date

Lens, oval shaped

1890-1940

Lens, circular, blue-tinted glass

1880-1930

Lens, oval-shaped, pink-tinted

1890-1950

Optical Trial Case

1911

Oval 'Chlorophylle' parallel glass

Oval white bent glass for protectors spectacles.

Oval smoke or neutral tint

Round white 'Kryptok' tonc bi-focal spectacle lens

Oval smoke or neutral tint bent glass spectacle lens

Bi-focal spectacle lens

1900

Oval white double convex pebble spectacle lens with a grooved edge

Oval smoke or neutral tint bent glass spectacle lens

Smoke spherical-cylinder concave spectacle lens

D-shaped green tint glass for preservers spectacles

Oval blue bent glass spectacle lens, pale tint.

Oval blue bent glass spectacle lens, medium tint.

Oval 'Chlorophylle' bent glass spectacle lens

Oval 'Chlorophylle' bent glass spectacle lens

Oval blue bent glass spectacle lens

Round white 'lenticular' concave spectacle lens

Oval blue bent glass spectacle lens, dark tint.

Oval amber double concave spectacle lens

Round white deep meniscus concave spectacle lens

Oval smoke meniscus concave spectacle lens

Oval pink meniscus convex spectacle lens

Square 'Kryptok' fused slab and segment

Oval white double convex spectacle lens

Square 'Kryptok' fused slab and segment

Round 'Kryptok' fused slab and segment

Square 'Kryptok' fused slab and segment

'Strubin' cemented bi-focal spectacle lens

1891

Oval white double concave spectacle lens

Round blue double convex spectacle lens

Round white 'Kryptok' tonc bi-focal spectacle lens

Oval smoke double convex spectacle lens

Square 'Kryptok' fused slab and segment

Oval white meniscus concave pebble spectacle lens

White convex spectacle lens

Plano-concave cylinder 'chlorophylle' tint

Blue spherical- cylinder concave spectacle lens

Blue plano-cylinder concave spectacle lens

Pair of variform spectacle lenses

1990-1995

Oval white meniscus concave spectacle lens

Two bifocal spectacle lenses

1870-1930

2 spectacle lenses

1801-1920

Lens, oval, flat

1890-1940

Lens, clear glass

1890-1940

Three spectacle lenses.

1900-1930

Lens, roughly cut oval shape

1840-1940

Lens, roughly cut glass

1900-1950