Quote:
Originally Posted by SetBuilder
This is why autograph authentication is such a metaphysical concept, rooted in idealism.
No one witnessed Marquard sign that card. At this point, the only thing that matters is that you think it's real. If you think it's real, then it's real.
Nothing will ever be certain when it comes to that signature.
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You could make the same argument for every autograph ever signed that you don't know the authenticity unless you witness it signed yourself. With that said, there are many many techniques to prove an autograph authentic.