View of a Da Vinci automobile engine, designed by James Scripps Booth. Handwritten on back: "Subject: Da Vinci automobile, 1925. Collection: MS10/James Scripps Booth Collection. Date: 1925. Photographer: Spencer & Wyckoff, photographers, Detroit, Mich. Location: Detroit, Mich. Source: John M. Booth. I.D.: Da Vinci engine, three-quarter left view."