1919 WS Program

[Yoda]

I have a friend, who used to be a dealer but solely on the uniforms, bats etc. side of things and got out a few years ago. I was over at his house the other day and he brought out a 1919 WS program. It was, I would judge, in excellent condition, unmarked and full of great 'fotos of the Reds and Sox, intriguing advertisers, line ups and the like. But here is the hook: on the front cover in pencil is written the name Joe; not Joe Blow or Joe Biden just Joe. And, yes, it does bear somewhat of a resemblance to copies of you-know-who's signature, at least the first name, that I have seen. There is no provenance and my friend doesn't even remember where he got it. He seems quite happy to let it go and asked me what I thought it was worth. Quite wisely, I said I didn't have a clue but would inquire via this learned forum if those folks who collect and/or specialize in WS programs/ Black Sox memorabilia if anybody might have a clue as to its' value. Can anybody help?