Raggedy Ann Annabelle doll locked in case - The Real Haunted Annabelle ?

This was given to us from a client that had a huge Hollywood memorabilia collection.  He said it's very valuable and rare and to do whatever we wanted with it.  He had this wrapped and sealed in a pallet box and was in its own room away from everything else for over 40 years.   The business card that was with it is the address of John Wayne Gacys property where all the brutal murders took place.  Very spooky stuff and not sure what to make of all this.  Annabelle is an allegedly-haunted Raggedy Ann doll.   Could this be the original doll or a replica ?   This is currently sitting in my neighbors shed as I don't trust this thing one bit.   Please make any offers and take this thing away from us!