"Lowell, USA, Flood Gate, Pawtucket Canal"
"Lowell, USA, 1821"
"Lowell, USA, 1832"
"Lowell, USA, Canal System - Hunter 1848"
"Zonca 1607, treadwheel pump, bucket type"
"Zonca 1607, treadwheel crane"
"Lowell, USA, Suffolk Mill Turbine"
"New American Turbine 1894, Hunter"
"Evan Leigh, Boydens Turbine, Tremont Mills"
"Geyelin-Jonval axial flow turbine, Hunter"
"Lowell, USA, Lowell Mill, Floor beams"
"Lowell, USA, Lowell Mill, beams in Visitor Centre"
"Lowell, USA, Hamilton Mills, velvet loom"
"Lowell, USA, Hamilton Mills, concrete & steel"
"Lowell, USA, Hamilton Mills"
"Lowell, USA, Hamilton Steam Mill & Offices"
"Lowell, USA, Appleton Steam Mills"
"Lowell, USA, Suffolk Textile Mill"
"Lowell, USA, Hamilton Canal & Appleton Mill"
"Lowell, USA, Massachusetts Mills"