Cyanotype photo of workers about to lower large metal pipe into trench at lower left. Two workers in foreground hold a rope and stand on pieces of wood acting as a bridge over the trench. Setting is rural area with trees in background. Pipe rests on top of row of rocks. Mounted on off-white cardboard with inscription on back: "48" Main Pipe - First to be laid/ Francis J. Derby Inspector - In the swamp between H.P. Ashley + Demoranville Pl."