Don Mattingly Autographed Game Used Cooper Bat Graded 8.5

Don Mattingly Cooper professional model bat is uncracked with evidence of excellent game use.
The length 34 inches and weight 31.4 ounces are stamped on the knob of the bat. Labeling period is 1993-1995. Autographed on the front of the barrel in black marker. Comes with a PSA/DNA letter with a grade of 8.5 assigned to the bat.