Just as a rule, I typically avoid EBay listings that have printed information listed above or below an auto (especially if it's on an index card) -- seen way too many overpriced examples that look like they're trying to hard to pass themselves off as legit.
That, and the picture quality is dismal. The least the seller could do is have clear front/back pics and closeups of the sig. This pic looks like someone shot it 20 years ago on a camcorder.