Coal mining roof support. C.1870. Part of a wooden roof support from Clifton Hall Colliery Coal mining roof support 1870 c.
Pit prop. Broken section of a wooden curbing ring or horse gin. Pit prop. Section of broken curbing ring
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