Holman Outdoor Drilling, Porthallow, 1960s
About this item
Outdoor core drilling near Porthallow using Holman pneumatic vertical drilling equipment. Holman Brothers Ltd of Camborne was a mining equipment manufacturer.
The Trevithick Society
Citation“Holman Outdoor Drilling, Porthallow, 1960s,” cornishmemory.com, accessed January 28, 2023, https://www.cornishmemory.com/item/HOL_293_05.
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