Before I continue, below are links showing hundreds of examples of forged Mickey Mantle baseballs, photos, etc. found on Ebay (the most dangerous place to buy autographs if you're a casual collector or impulse buyer).
That Mantle and DiMaggio are absolutely hideous. Damn! Can you imagine bragging up those two baseballs to someone, and being utterly clueless. Great stuff, as usual, Chris.