Pit prop. Broken section of a wooden curbing ring or horse gin. Pit prop. Section of broken curbing ring
Steel Pit Prop - Hinged Joist Prop (Ashington Colliery) Steel Pit Prop - Hinged Joist Prop for Ashington Colliery
Sectioned hydraulic prop made by Dowty Mining Equipment Ltd, c.1970. Mounted on wooden base. Sectioned hydraulic prop made by Dowty Mining Equipment Ltd circa 1970