This Autographed 12x35 Photo with the inscription of "Soil Sampling On Plum Crater Rim, EVA 1-4-21-72, Apollo 16 LMP, 10th Man To Walk On The Moon, Flag Crater, Gnonome, Plum Crater,Lunar Rover, Me" has been Personally Signed by Charles Duke of Apollo 16. 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.