This 1963-67 Hank Aaron model bat was used and autographed by Aaron and was possibly used to hit home run #506. This bat was acquired during a doubleheader on August 28, 1968, by the consignor's father at Connie Mack Stadium. Hank Aaron hit his 506th career home run during the second game. Though it is not confirmed that this was the actual bat Aaron used to hit the home run, the lot includes a scored program for the second game of the doubleheader. The program is signed by Aaron and is certified by PSA. The bat, an Adirondack model number 63, is 35" long and weighs 33.6 ounces. The bat shows heavy use and includes a handle crack. Ball marks and ball stitch impressions are visible on the barrel. There is also a moderate amount of pine tar on the handle. Aaron's number 44 is written on the knob of the bat. Aaron autographed the barrel of the bat with a blue Sharpie. The bat has been graded GU 8.5 by PSA, and a full letter is included.