Assembled cutting edges for stop log shafts, Waterworks Park, Detroit water supply system
Description:
View of assembled cutting edges for stop log shafts, Waterworks Park, Detroit water supply system. Wooden fence in background. Printed on front: "City of Detroit. Department of Water Supply. Land tunnel and structures. Contract RC 12. Dravo Contracting Co., contractors. Photo no. 11. Date: 6-2-30. Photo by Manning Brothers." Typed on back: "Steel, cutting edges for stop-log shafts, assembled."