Wow, I respectfully and totally disagree with Eric Keith Longo...I actually own an Elton that is very similar to this Richard Booth piece, and as an exemplar I obtained the autograph from Sir Elton himself at the end of his concert as was exiting the stage! IMO you have a 100% legit autograph Richard Booth. Sorry Eric Keith Longo, I think you're wrong.
I think Eric was referring to the Capt. Fantastic posted by Frank Garcia not the one in the original post. So Signature with inscription: "Likely Good" & Capt. Fantastic "Likely No Good"