It's a 1917 Mulford Special roadster. 1914 Chevrolet powered.
"Famous racing driver Ralph Mulford, who drove for and worked closely with the Duesenberg brothers, tried twice to launch his own automobile company to sell a car he designed, in 1915 and 1922. His first attempt produced two cars, which unscrupulous bankers tricked him out of, and his second attempt produced seven cars but went no further."