you really need to study Munson, then. That ball is really a bad forgery. Look at the end of Thurman. Is that an L? H? either way, it doesn't belong. Study known examples and then look at this one. If you are looking for a cheap Munson, which it appears you are, you will not find it. He was a miserable signer, and the demand far exceeds the supply.
He was from the area I live. So these balls come up alot. I am not goof at Munson at all. The last 2 that this auction house sold were good. Thought I would ask on here and save my money.