Fox “Back to the Future” AUTOGRAPH Signed Funko Pop Figure B (Item #176347). Signed By: Michael J. This item has been thoroughly reviewed and inspected by the autograph authentication experts at AutographCOA (ACOA). Verification of this item’s authenticity can be confirmed by visiting the AutographCOA web site and doing a COA lookup for this item. The ACOA certification number for this item is: SC20669. This item was signed in-person and is guaranteed to be authentic. Our Certificate of Authenticity (COA) will be included. All autographed items include a lifetime guarantee as to their authenticity.