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Image Credit
/-/https/www.sciencebuddies.org/cdn/Files/20614/5/Ishihara_9.svg.png)
Description:
An Isahara color test plate for red-green color blindness showing the number 74 in green on a red background
Author:
Shinobu Isihara
Source:
Wikimedia Commons
License:
Public Domain
Source URL:
https://commons.wikimedia.org/wiki/File:Ishihara_9.svg
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