Posted By:
Corey R. ShanusPeter,
As to your last post, I'm not saying an auction house to absolve itself of liability has a duty to independently corroborate; I believe I've also said explicit disclosure would be an adequate duty.
I would also argue that statistics can in and of itself establish the necessary red flag to necessitate the disclosure duty (i.e., the belief that a statistically significant percentage of slabbed vintage cards are altered as a matter of law could establish the red flag).