Underpinning on A-level basement, Main Library

View of underpinning on A-level basement, Main Library, Detroit Public Library during construction. Construction worker with shovel behind column. Handwritten on front: "Cass, original S20, CL, new & old work, original #S19." Printed on front: "Detroit Library Commission. Addns & alterations to Main Public Library. Bryant & Detwiler Company, contr. Descr. basement, level A, old building underpinning. No. 119. Date: 12-1-61. Win Brunner, photo." Handwritten on back: "Note: storm & sanitary C.I. sewers. Those go under Lecture Hall and then to Cass Ave. The mechanic that put this in in 1915+, could not have been very proud of his work, or possible the mech. engr. of that date [undecipherable] up the grades. Both sewer lines are active this date."