Own a piece of Jackson Holliday's historic debut with this Baltimore Orioles Autographed Old Hickory Game Model Bat featuring an "MLB Debut 4-10-24" inscription. This full-size, game model bat features Holliday's signature and "MLB Debut 4-10-24" inscription. It's obtained under the auspices of the Major League Baseball Authentication Program and can be verified by its numbered hologram at MLB.com