The Hydraulic Pit Prop
The Colliery Guardian - The Hydraulic Pit Prop article Sep 1948
Original photo in the Dowty archive at the Gloucestershire Heritage Hub
The Colliery Guardian - The Hydraulic Pit Prop article Sep 1948
Original photo in the Dowty archive at the Gloucestershire Heritage Hub
The Colliery Guardian - The Hydraulic Pit Prop article Sep 1948
Original photo in the Dowty archive at the Gloucestershire Heritage Hub
The Colliery Guardian - The Hydraulic Pit Prop article Sep 1948
Original photo in the Dowty archive at the Gloucestershire Heritage Hub
Dowty Mining Equipment - Pit Prop inner assembly
Original photo in the Dowty archive at the Gloucestershire Heritage Hub
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