Description:September 29, 1997 Pedro Martinez single signed 300th strikeout game attributed baseball. Rawlings L.Coleman ONL ball has been signed "Pedro Martinez" on the sweetspot and inscribed "300K #45 9/25/97." Ink signature rates 8-8/9 out of 10. Ball displays soiling and usage wear. Includes auction LOA from JSA and letter of provenance from Tommy Harper: Ball EX, Sig. NM