Posted By:
Joe K.Doug- You stated "...That is the provenance that is key to it not being a Cleveland gamer." But where is the provenance that is key TO IT BEING a Cleveland gamer???
So it would seem Mastro started with the premise that this was a Cleveland cap, and minus any provenance refuting that, decided to stick with that assumption. Is that how authenticating works? (sorry for the sarcasm 
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Does it matter that much whether or not there was mention of it being a club cap? There was also no mention of it being a Cleveland Indians cap. It would seem the main basis of it being a Cleveland Indians cap is that the stylized ‘C’ matches that of Cleveland from the same period. Isn’t it reasonable to assume many town, school, collegiate or non-pro teams could have used a black wool cap with the same letter ‘C’ on it. Without provenance it would seem there is little basis to assume this is Cleveland and misleading to call it “Cleveland Indians Circa 1920 Game Worn Spalding Baseball Cap”. It could be Cleveland, it could just as easily not be.
I think David and Scott's compromise on the lot wording sounds very reasonable and would make all comfortable with this lot.
Just my two cents...Thanks! -Joe