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Freeman Near Vision Unit
OPTOMETRIC INSTRUMENTS
near vision test
Birmingham Optical
Europe: United Kingdom, England
20th c.
plastic
2000.137
OPTOMETRIC INSTRUMENTS
near vision test
Birmingham Optical
Europe: United Kingdom, England
20th c.
plastic
Grey plastic lightbox with handle. Three-sided. White electric flex with switch and plug. Three translucent panels containing 1) a written vocational acuity test, 2) a diagonal line = oblique tangent phoria test, 3) a revolving disc controlled by a black knob featuring a binocular bichromatic chart, set of Landolt rings and a geometric shape test.
2000.137
Gift of Mrs E. M. Blackburn, 2000