If you compare Moore’s signature on both samples, they’re obviously different. Not to mention the 7’s.
The yearbook autograph is "Roy Moore", no middle initial. His official signature as Chief Justice of Alabama includes a sloppy S that looks like it's a flourish on the y in Roy. But the two sigs are of the same person.
Not to mention the 7’s.
The sevens in "12-22-77 Olde Hickory House" were more than likely added by the yearbook owner to document the time and place of the autograph. He had become a deputy DA the previous 1 October. She did get the name of the restaurant wrong, but it's hard to make a federal case out of her error (Olde for Old, LOL!).
She's lying about the attempted forced lewinsky, but there is no way to prove it from the yearbook autograph.