Safety lamp, Westphalian no.1, Clanny type, from the Royal Commission on Accidents in Mines, 1879-86, maker: A. Sieppel, Bochum, marking: makers name, c.1883 Safety lamp c.1883
Cased Wild T2 gyrotheodolite no.320852, with MW77 - Gyromat serial no.110, dated 1959. One of the two instruments used by the British surveyors of the time of the Channel Tunnel. Channel Tunnel theodolite, Swiss, 1959 1959
Safety lamp, Westphalian no.2, Boty type, from the Royal Commission on Accidents in Mines, 1879-86, maker: W. Sieppel, Bochum, marking: makers name, c.1883 Safety lamp c.1883