A closer before anyone knew the meaning, Lindy McDaniel had a long, successful major league career over 21 seasons.  This PSA 9 Mint Exhibit is about as sharp as one of his legendary curveballs, with just a little factory ink spray seen at the top of the obverse. The reverse shows a small blotch, and two short, red lines that look like a manufacturing artifact. The edges are keen and the corners pointy. Top of the heap, PSA has no 10's in their pop report.