Early bifocal lenses with rounded segments and oval lenses
1800-1825
Spectacles with round green lenses and light turnpin side-arms
1720-1820
Folding clip eyeglasses
Steel double spring folding eyeglasses with round lenses
1850-1869
Oval 'Chlorophylle' parallel glass
Oval white bent glass for protectors spectacles.
Oval smoke or neutral tint
Nickelled clip folding eyeglass frame
Nickelled clip folding eyeglasses
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
Canadian steel folding clip eyeglasses with cork plaquets
Canadian steel coiled-spring folding clip eyeglass
Oval smoke or neutral tint bent glass spectacle lens
Chinese spectacles case
Smoke spherical-cylinder concave spectacle lens
Chinese spectacles with round flat lenses and two-piece side-arms
Rimless clip spectacles with amber oval bi-focal lenses
Chinese spectacles with rimless oval convex lenses and two-piece metal side-arms
Ladies clip spectacles with amethyst oval bi-focal lenses
Spectacle case of wood covered in mother-of-pearl with silver guard and hinge
1810-1829
Nickelled clip folding eyeglasses with oval lense and cork plates
'Prima Donna' spring folding clip eyeglasses
1874
Large nickelled folding clip eyeglasses frame with
D-shaped green tint glass for preservers spectacles
'New Pattern' study eyeglasses with large round lenses and nosegrip
Oval blue bent glass spectacle lens, pale tint.
Triple bar horizontal spring clip eyeglass frame w
1893
Oval blue bent glass spectacle lens, medium tint.
Folding eyeglasses with round lenses and bow spring
Oval 'Chlorophylle' bent glass spectacle lens
Oval 'Chlorophylle' bent glass spectacle lens
Folding eyeglasses with straight band spring and round lenses
Oval blue bent glass spectacle lens
Oval blue bent glass spectacle lens, dark tint.
Round white 'lenticular' concave spectacle lens
'Eye-preserver' spectacles with D-shaped lenses
1836-1855
Round white double convex cataract lens.
Round white meniscus convex cataract lens.
'Old Pattern' compact folding eyeglasses with round lenses
American spectacles with a gold wire frame
1810-1840
"Revluc" later adjusting clip eyeglass frame
1850-1913
Folding eyeglasses with bow band spring and oval lenses
1870-1879
'Eye-preserver' spectacles with sets of D-shaped lenses
Metal clip eyeglasses with double cork plaquets and oval lenses
Lady's style folding eyeglasses with oval lenses and straight band spring
'Prima Donna' folding eyeglasses with oval lenses
1874
