View of construction workers doing masonry work on second floor concourse, Main Library, Detroit Public Library. Workmen stand on scaffolding; ductwork and pipes overhead. Handwritten on front: "Col. 181; col. 179." Printed on front: "Detroit Library Commission. Addns & alterations to Main Public Library. Bryant & Detwiler Company, contr. Descr. concourse, second floor. No. 161. Date: 4-30-62. Win Brunner, photo."
