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NM... The early Mantle looks ok to me.

I used to have a few dealings w Richard in the day, and he was always honest and knowledgable enough. That autograph looks pretty good for the first year style. JMO tho, as Im not an expert.

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I've heard good things about Bond. He used to work for Lelands.

Also, Mantle's signature was very different when he young. You don't seem many examples of his early signature, which makes them look particularly odd.