What is the value of a baseball autographed by Nolan Ryan and has on it not only the signature but 5000th srikeout 8-22-89 300th win 7-31-90 27th major league season?

Hey I Have The Same Exact Ball. My Cousin (Construcrtion Worker) Found It At The Citi Field Construction Site. I Want To Know More About It. But I Can't Find Anything Sorry