Inauguration of the Packard proving grounds, race car being checked on track

8x10 black and white Packard Co. file photograph of a 1928 Packard race car being checked out by three men, driver behind wheel. 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, set closed course one lap record of 148.17-mph, thus did proving ground track become the world's fastest speedway, a title held until the opening of Monza in Italy after W…