Nice Willie Mays pairing includes one (1) Mitchell & Ness Cooperstown Collection New York Giants size "XL" jersey signed in the front in black; and one (1) Limited Edition (28/51) Adirondack Willie Mays 1951 National League Rookie Of The Year Bat signed by Mays in blue on the barrel. Signature on bat has been deemed Authentic by PSA with PSA/DNA Cert on bat knob.