1964 Jim Hall Champion Driver Signed Letter On Chaparral Cars Letterhead JSA Vtg1964 Jim Hall champion driver signed vintage letter on Chaparral Cars letterhead Content of letter discusses a switch from Chevrolet to Ford engines Hall is a retired race car driver, constructor , and team owner He had major success as a driver in a multitude of race categories but is even more well known for his pivotal race car designs including Chaparral sports racing and Indy cars COA by JSA Certification #AY35621 8. 5 x 11. 0 Excellent