In 1975, Thurman Munson had reached the peak of his very proficient baseball abilities. He broke the 100 RBI barrier for the first of three times and hit for a career high .318. Official New York Yankees check is for the amount of $5,860.38 and is endorsed "Thurman L. Munson" in 9/10 black felt tip pen on the reverse. Also signed by another person named Sims below Munson's signature.