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Graham Field Health - Ishihara 38 Plate Chart Book for Color Blindness
Retail: $657.16
Price: $349.47
Availability: Back Order
Graham Field Health Item #: 1256 -

Accepted by leading authorities as a simple and accurate method for discovering congenital 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 * Makes use of the peculiarity that in red-green blindness blue and yellow appear remarkably bright compared with red and green * Color plates encased in specially designed album-type books for ease of handling * Detailed...

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