Madison Muskies Signed Team Baseball early 80s A's affiliate Jose Canseco ?

In a plastic display case, original signatures including manager Brad Fisher.

I bought this at a game in Madison Wisconsin I believe sometime in the early 80s. I did not receive a certificate of authority and so no COA will be provided, but the signatures look original. Jose Canseco played for the Muskies, but I cannot tell whether he signed this ball. If particular signatures are important, please review the photos and ask questions.

Stamped "Official Approved Midwest League" with league president signature. Wilson horsehide cover.