View of machinery and equipment on floating platform; large pipes or cylinders on platform; man stands on rowboat next to platform; two men stand on supports attached to platform. Embossed on front: "C.M. Hayes & Co., Detroit."
1 photographic print mounted on mat board ; image 10 x 12 in.
Filed in BHC photo collection as LD/Tunnels and tunneling
Reproduction of photograph from the Burton Historical Collection