"Lowell, USA, Hamilton Canal & Appleton Mill"
"Lowell, USA, Massachusetts Mills"
"Lowell, USA, Hamilton Mills"
"Lowell, USA, Hamilton Mills, velvet loom"
"Lowell, USA, Boot Mills from river"
"Lowell, USA, Waterpowered Boot Mills "
"Lowell, USA, Steampowered Boot Mill "
"Lowell, USA, Boot Mills & water intake "
"Lowell, USA, Massachusetts Mills & Concord River"
"Lowell, USA, Hamilton Steam Mill & Offices"
"Lowell, USA, Hamilton Mills, concrete & steel"
"Lowell, USA, Lowell Mill, beams in Visitor Centre"
"Lowell, USA, Appleton Steam Mills"
"Lowell, USA, Lowell Mill, Floor beams"
"Lowell, USA, Massachusetts Mills from river"
"Lowell, USA, Massachusetts Mills"
"Lowell, USA, Suffolk Textile Mill"
