The authenticity can be verified on Beckett Authentication Services website. This Autographed Card with the inscription of "Boba's Voice (Wingreen), Darth Vader (Prowse), Boba Fett (Bulloch)" has been Personally Signed by James Earl Jones, David Prowse, Jeremy Bulloch & Jason Wingreen of Star Wars. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.