"Alaston" air turbine dental drill, by the Dental Manufacturing Co., London, 1965-1970 "Alaston" air turbine dental drill 1965-1970
Drill attachment with claw-type ending for Harrington's clockwork dental drill, the "Erado", no.124, 1864-1870 Harrington's clockwork dental drill attachment 1864-1870
Drill attachment with point-type ending, incomplete, for Harrington's clockwork dental drill, the "Erado", no.124, 1864-1870 Harrington's clockwork dental drill attachment 1864-1870
Harrington's clockwork dental drill, the "Erado", no.124, 1864-1870 Harrington's clockwork dental drill 1864-1870