The product is an original Funko Pop of Marty McFly from Back to the Future, signed by Michael J. Fox. The autograph has been authenticated by Beckett, a well-known authority in autograph authentication. This collectible item is a must-have for fans of the iconic film series and would make a great addition to any entertainment memorabilia collection. The authenticity and origin of the signature add value and uniqueness to this special piece of memorabilia.