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Walman Instruments
Ishihara Color Plate Book
Brand: walman
Condition: New
Simple and accurate method for discovering congenital color blindness of two types; total color blindness and red-green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of defect in color vision. 14, 24, or 38 plates available.
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Simple and accurate method for discovering congenital color blindness of two types; total color blindness and red-green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of defect in color vision. 14, 24, or 38 plates available.