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p.d. gauge
OPTOMETRIC INSTRUMENTS
pupillometer
Europe: United Kingdom
Early-mid 20th c.
metal; glass; wood
lens: 37 mm; overall: 48 x 207 x 10 mm

Pupillary distance gauge (adjustable for p.d. 40mm-80mm). Two round lenses with centrally marked crosses. Metal bar set into black painted wooden handle.


2003.142

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