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davidcyclebackAli is correct that there is only PSA/DNA quick opinion for autographs and no such thing for cards. Besides, when you get a quick opinion (I did it once!), you get a confirmation web page that lists the item description, ebay auction # and authenticity opinion. This page can be viewed and opinion confirmed by anyone who is given the address. Along with the opinion email you also get from PSA/DNA, there is no difficulty demonstrating that a Quick Opinion was given and what was the verdict.