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Image
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4
Non-Commercial Use
4
Category
Ophthalmology
5
Collection
Sir Henry Wellcome's Museum Collection
3
Object type
colour blindness test
5
Maker
H. K. Lewis & Company Limited
1
Reiner and Keeler
1
Place of origin
Europe
2
London
2
London, Greater London, England, United Kingdom
2
Date
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Edrige-Green coloured bead test, England, 1885-1925
1885-1925
Ishihara colour blindness test, London, England, 1948
1948
Holmgren's coloured wool test for colour blindness, Europe, 1871-1900
1871-1900
Eight Ishihara charts for testing colour blindness, Europe, 1917-1959
1917-1959
Colour blindness test.
Colour blindness test.
