Tests for colour-blindness / by Shinobu Ishihara.
- Ishihara, Shinobu, 1879-1963.
- Date:
- 1957
Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Tests for colour-blindness / by Shinobu Ishihara. Source: Wellcome Collection.
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