This jersey has been personally hand-signed by Tom Seaver with the inscriptions "HOF 92, 311 WINS, ROY 67, 3X CY." It has been obtained under the auspices of the Major League Baseball Authentication Program and can be verified by its numbered hologram at MLB.com. It also comes with an individual numbered, tamper-evident hologram from Fanatics Authentic. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.
If you want to spend $5000 on this you can find it at Fanatics.