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Board of Trade Colour Vision Test Lantern
Board of Trade
1912
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Edridge-Green Lantern / Colour Perception Lamp
Rayner
c.1935
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Giles-Archer Colour Unit (Aviation Model)
R. Archer & Sons Ltd
1950s?
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Giles-Archer Colour Unit (Aviation Model)
c.1935
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Giles-Archer Colour Unit (Standard Model)
c.1935
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Holmes-Wright Colour Perception Lantern Type 'B'
M.S. Precision Products Ltd
1974
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Lantern Test - Pairs of Colours
Fletcher, R. J.
2010s
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Pickford-Nicolson Anomaloscope
Rayner
c.1987
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test lantern
20th c.
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test lantern
Mid-late 20th c.
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The Sloan Colour Threshold Tester (CTT)
Sloan, Dr Louise L.
Post 1944
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