Optometer, objective or subjective
1831-1900
Optometer, English(?), 1851-1930
1851-1930
Optometer, objective or subjective
1831-1900
Optometer, made by Hardy and Co.
1902-1920
Optometer, objective or subjective
1831-1920
Optometer, objective or subjective
1831-1900
Optometer, objective or subjective
1831-1900
Brass optometer
1903-1930
Optometer, objective or subjective
1831-900
Optometer, objective or subjective
1851-1930
Optometer, F.D.A' 5
1831-1900
Optometer(?), stop-watch form, scaled circular fac
1890-1945
Optometer
Optometer, objective or subjective
1801-1900
2 Stoke objective optometers
1850-1930
Optometer, objective or subjective
1831-1920