Guarantees. This has nothing to do with advertising autographs as “genuine” or “authentic,” but with standing behind what you sell. Good dealers will guarantee authenticity without time limit, their policy will be simple and straight-forward, and they will not make you, the non-expert, jump through hoops to somehow prove that the item you bought from them is not authentic. Moreover, authenticity aside, they will have a reasonable return policy allowing a refund if you are dissatisfied with what you receive (we offer a 5-day right to return with no questions asked), and will do everything reasonable to satisfy a customer. There should be no complexity, aggressiveness, posturing or defensiveness whatsoever about a guarantee or return policy.