Subjects Pipes

International Exhibition situation plan, 1876

Centennial Exhibition situation plan, 1876

69th St. Sewer and Culvert across Lansdowne

69th St. Sewer and Culvert across Lansdowne AVe.

Showing method of sinking the pipe on the bed of the River (2004.057.0074.006)

Showing the method of sinking the pipe on the bed of the river

Eleven men in a work gang plug leaks in a tunnel, the Torresdale Conduit

Torresdale Conduit work gang, 1906