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Freeman Near Vision Unit
OPTOMETRIC INSTRUMENTS
near vision test
Birmingham Optical
Europe: United Kingdom, England
20th c.
plastic
overall: 210 mm x 103 mm
2015.326
OPTOMETRIC INSTRUMENTS
near vision test
Birmingham Optical
Europe: United Kingdom, England
20th c.
plastic
overall: 210 mm x 103 mm
Black plastic lightbox with handle. Three-sided. Black 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) an unoccupied chart panel.
2015.326
Gift of E.M. Blackburn, 2000