It's definitely not from 1963!
Check out this previous discussion
It seems that Ben's "proof" that this is a genuine 1963 Ringo Starr Tux is that he has an appraisal from the "Antique Roadshow Guy!".
I think that the Ebay Tux ad draws a lot of visitors and that is the ads value.
Of course if someone is foolish enough to pay $10,000 for it, the seller will happily accept.