Proton magnetometer consisting of a sensing element and a dummy meter case, by Littlemore Sci. Eng. Co., c.1970. (see part records) Proton magnetometer consisting of a sensing element and a dummy meter case 1970
Thalen-Tiberg magnetometer, 1880 type, with Dahlblom sine arm, 1928, by Berg Thalen-Tiberg magnetometer, 1880 type, with Dahlblom sine arm, 1928, by Berg 1928
Vibration magnetometer by Griffin and George Ltd., with magnet and various metal bars Vibration magnetometer by Griffin and George Ltd. 1943-1983
Thomson-Thalen magnetometer, c.1899, by Berg Thomson-Thalen magnetometer, with box and display stand 1899