Close-up image of digging the monolith for the dam. Four men can be seen in the trench to the left of the tall ladder digging with hand tools. It is annotated "Foundation for monolith 3-9-59"
Stamped on reverse "Richard Bros Penzance"
Image showing general view of the excavation works for Drift Dam. There are a few men standing in the middle of the photograph. It is annotated "Works on right bank of river looking upstream 3-9-59"
Stamped on reverse "Richards Bros Penzance"
Image showing shuttering for concrete and ladders.
It is annotated "Excavation & Concrete left bank of river 3-9-59"
Stamped on reverse "Richards Bros Penzance"