Willie Mosconi signed sports memorabilia is a top-seller. This Willie Mosconi Autographed Cue Ball - JSA Authentic has been certified by JSA and will come with a Certificate of Authenticity (COA). Willie Mosconi autograph memorabilia collectors will love this quality signed product. This item is in stock and ships out same day. Autographed memorabilia is valuable and a perfect gift idea for a diehard fan.