This Autographed 8x10 Photo with the inscription of "Apollo XVII" has been Personally Signed by Eugene Cernan of Apollo 17. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services.The authenticity can be verified on Beckett Authentication Services website. Press Pass Collectibles only offers Authentic Autographs by Eugene Cernan through Signings, In-Person Signings or Private Collections to include a 100% money back Lifetime Authenticity Guarantee.