Optometer, objective or subjective

1831-1900

Optometer, English(?), 1851-1930

1851-1930

Optometer, objective or subjective

1831-1900

Optometer, objective or subjective

1831-1900

Optometer, objective or subjective

1831-1900

Optometer, objective or subjective

1831-1920

Optometer, made by Hardy and Co.

1902-1920

Optometer(?), stop-watch form, scaled circular fac

1890-1945

Brass optometer

1903-1930

Optometer

Optometer, objective or subjective

1831-900

Optometer, objective or subjective

1851-1930

Optometer, objective or subjective

1801-1900

Optometer, F.D.A' 5

1831-1900

2 Stoke objective optometers

1850-1930

Optometer, objective or subjective

1831-1920