Close-up view of louvers in Adam Strohm Hall, Main Library, Detroit Public Library. Decorative metalwork on left. Printed on front: "Detroit Library Commission. Addns. & alts. to Main Public Library. F.H. Martin Construction Company. Descr. new louvers in Adam Strohm Hall, poor joint at lower left corner. No. 89. Date: 2-7-61. Win Brunner, photo."