This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Optical illusion disc with man jumping rope and man sticking out his tongue. Optical illusion disc which is spun displaying the illusion of motion of man with blackface jumping rope in circle at the center of the disc and of man sticking out his tongue in circle at the outer edge of the disc Part of McLean Optical Illusions or Magic