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Binocular Prism Vergence Tester
ORTHOPTIC INSTRUMENTS
prism vergence test
Early-mid 20th c.
metal

Binocular prism vergence tester in black metal with chin rest and stereoscope card holder. White metal stand. Prismatic eyepieces with trial lens clips either side. One white semi-circular scale. Hinged divider.


1999.303

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