Induction coil with switch, simple hammer-break interrupter, discharging electrodes, and capacitor in base Induction coil with switch 1900-1980
Large induction coil by Alfred Apps, London, used by Sir William Crookes, with additional primary coil Large induction coil by Alfred Apps 1879
Horizontal induction coil with interruptor, reversing switch and 1 ebonite pillar with terminal on top (another missing), all on wooden plinth made by Harvey and Peak, Beak Street, London, English, 1890-1900 Horizontal Induction Coil 1890-1900
Induction coil used by L. A.Woodward, possibly in conjunction with a Raman Spectrograph Induction coil used by L. A.Woodward
Induction coil by Newton & Co., 3 Fleet Street, London, no.1380, c.1910 Induction coil by Newton & Co. 1901-1920
Induction coil for x-ray use, by A E Dean and Company Limited, London, England, 1903-1929. Induction coil for x-ray use 1903-1929