View of a bronze plaque commemorating the opening of the Ambassador Bridge. Plaque reads [in part]: "Detroit International Bridge Company and the Canadian Transit Company. Ambassador Bridge designed and constructed by McClintic Marshall Company, engineer and contractor. 1927-29." Printed on front: "U.S. 202." Handwritten on back: "Dedication & opening Nov. 11, 1929. U.S. 202, 2-7-30."