Inauguration of the Packard proving grounds

7.5x9.5 black and white Packard Co. file photograph of two 1928 Packard race cars on track at proving grounds. Inscribed on photo back: Packard Motor Car Co. proving grounds 2.5 mile concrete speedway Utica, Mich., inauguration ceremonies 14 June 1928, Leon Duray; 91-cubic inch front drive Miller special # 4, & Norman Batton; # 22, coming out of curve at 140-mph.