Overview of the dam and valley, and reservoir almost full. The image is annotated "Drift Reservoir nearing completion 1-2-61"
It is stamped on the reverse "Richards Brothers, Penzance"
Construction of tower at the dam site, a lorry delivering concrete alongside to the right. Three men high up on the scaffolding. The image is annotated "Tower from access road 9th lift being placed 27-11-62"
Close-up of tower surrounded by scaffolding, buttresses can be seen supporting the circular construction. The image is annotated "Tower 30ft high from S.E. 27-11-62"