Trying To Deceive The Human Eye
Circuses were one of the main sources of amusement back in the day. While animal rights activists might be very much against them today, they were common back then. Sometimes, there would even be incredible acts that completely amazed people. Other times, it was smaller things, like this image here.
It would seem as if this old lady is extremely flexible. That’s why she’s able to fit inside a box and put her legs in front of her! That is the optical illusion attempted here. It’s more likely that there’s a false wall and someone is sitting on a chair right on top of her. Nice try, lady!