https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/9183855
Backward Knee Swing, from the Gymnastic Exercises series (N77) for Duke brand cigarettes
Backward Knee Swing, from the Gymnastic Exercises series (N77) for Duke brand cigarettes
Original public domain image from The MET
Public DomainFree CC0 image for Personal and Business use