Rotary air drill, Type R.A. I., for coal and medium hard stone, with 1 37/64” masonry drill bit, by Hardypick Ltd., Heeley, Sheffield, Yorkshire, England, 1948-1953 Rotary air drill 1948-1953
Safety lamp, Mueseler no.25, from the Royal Commission on Accidents in Mines, 1879-86, maker: J. Mills and Sons, Newcastle-on-Tyne, marking: makers name, c.1882 Safety lamp
Safety lamp, Mueseler no.9, from the Royal Commission on Accidents in Mines, 1879-86, maker: E. Thomas, Aberdare, marking: trademark, 1860-1881 Safety lamp
Safety lamp, Mueseler no.13, from the Royal Commission on Accidents in Mines, 1879-86, maker: E. Thomas, Aberdare, marking: makers name, 1860-1881 Safety lamp