"Zaan windmills"
"Schermer Top mill, inside winder"
"Schermer Middle mill, in sail"
"Schermer Archimedes screw"
"Netherlands - Kreekrak locks"
"Netherlands - Kreekrak locks"
"Schermer Triple Lift mills"
"Dutch Delta Project - Stone Grab"
"Schermer windmill sail"
"Schermer Archimedes screw shaft"
"Netherlands Delta Piles and Compactor"
"Dutch Delta Project - Mattress for dykes"
"Dutch Delta Project - Concrete pier"
"Netherlands - Krammer locks"
"Netherlands Delta - bucket dredge"
"Netherlands - Geer Kreekrak locks sluice"
"Netherlands - Kreekrak locks"
"Netherlands Paper Mill, Schoolmaster, W. Zaan"
"Netherlands, Paper Mill Schoolmaster, Scales"
"Schoolmaster Beater circular end of Trough"