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Badal type optometer
OPTOMETRIC INSTRUMENTS
optometer
wood; metal; paper
overall: 60 x 318 x 41 mm
1999.3241
OPTOMETRIC INSTRUMENTS
optometer
wood; metal; paper
overall: 60 x 318 x 41 mm
Badal type optometer consisting of a wooden (ebony?) grooved base with white paper imperial scale set to one side. (1 to 12 inches). Lens in round black-painted brass frame which fits into shoe on base.
1999.3241