The authenticity can be verified on Beckett Authentication Services website. This Autographed & Framed 27x40 Movie Poster has been Personally Signed by Michael J. Fox, Christopher Lloyd, Lea Thompson, Harry Waters Jr., Thomas F. Wilson, Claudia Wells, James Tolkan & Donald Fullilove of Back To The Future. This item is 100% Authentic to include a hologram by Beckett Authentication Services. This item will come with an affixed Beckett Authentication Services (BAS) authentication sticker, which includes a scannable QR code to verify authenticity. Please note that Beckett no longer provides serial-numbered COA cards, and the attached BAS sticker will serve as the complete authentication for this item. The authenticity can be verified on Beckett Authentication Services website. This item has been professionally framed to overall dimensions of approximately 37.5 x 49.5 inches.