comprising of a coil o a polished mahogany plinth base with ruhmkorff switch, adjustable interupter, with connectors at the top, width 23cm; a small coil possibly out of an electrical toy/demonstration set on a mahogany plinth, width 15,5cm; a very small coil on a mahogany plinth base, again probably from an electrical toy/demonstration set, width 12cm (3)

Note all tested with a 9v battery and working