T206 ed walsh blue old mill sgc 30!

[Exhibitman]

Originally Posted by packs

I think people have a bigger issue with the lack of a reasonable explanation for how such a card could have been made in a sole individual printing. As I said every printing anomaly, even the most extreme of them, seem to have at least one other example except this card.

That is not a good deductive argument against the legitimacy of any card. It has a formal fallacy. A good deductive argument has to have all true premises from which the conclusion is reached:

All men are mortal
I am a man
I am mortal.

The argument against the card is:

All genuine Old Mill cards are black backed
This card is blue-backed
This card is not a genuine Old Mill

Problem is, no one here has seen every Old Mill card ever made. The first leg of the argument is invalid. It is a fallacy of division variation: ascribing an attribute to every member of a class because every known member of the class has it. Doesn't rule out the exceptional cases within the unknown part of the group.