Distribution Department, Low Service Pipe Lines, tunnel at Chelsea North Bridge, shaft and air lock, Mystic River; Charlestown; Chelsea, Mass., Oct. 2, 1900 , waterworks, water tunnels, construction sites, air locks airtight spaces
Size: 5055px × 3911px
Photo credit: © piemags/DCM / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: