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Giles-Archer Colour Unit (Aviation Model)
COLOUR VISION TESTS
colour vision test lantern
R. Archer & Sons Ltd
Europe: United Kingdom
1950s?
metal; plastic
overall: 60 mm x 195 mm x 66 mm

Black metal cylinder containing electric light bulb. Lens disc attached to side with sliding bar behind it. Seven lenses and one frosted aperture. Dark Red, yellow, signal red, signal yellow, signal green, blue green and green. Attached to a electric handle with on-off switch.


2017.103

Transferred from the former Museum and Library of Optometry, Aston University / Gift of the family of the late Anthony G. Sabell FCOptom, 2016



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