This is absolutely genuine, and screen used, and not a reproduction or copy.
It comes with a signed certificate of authenticity from Studio-Props. We purchased this item directly from 20th Century Fox and have placed a copy of our receipt from Fox on the C.O.A. to prove it.
This is an odd shaped pair of shoes. The toe area is exaggerated and bulging to imply that a large ape foot is contained within. Inside is a hand written notation that says "32 Jessica". The uppers are black velvet, the soles are rubber and are unworn.