This Autographed Auto Graded Gem Mint 10! 8x10 Photo with the inscription of "Is Darth Vader (Prowse)" has been Personally Signed by Carrie Fisher & David Prowse of Star Wars. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.