This hat was found in Phoenix, Arizona, so I assume Ms. Smith signed it during one of the Founders Cup tournaments that took place in Phoenix.  

Marilynn Smith won 2 majors and 21 LPGA events in all.  She was one of the founders of the LPGA, and she is a member of the World Golf Hall of Fame.

The autograph has not been authenticated, but it compares favorably to other signatures I found online.

The hat is a strapback, one size fits all (or most).

Very clean hat.  You may find very minor signs of wear that I missed, but certainly nothing egregious.

Marilynn Smith Autographed Hat Founders Cup LPGA Co-Founder World Golf HOF