細節
A 12 volt induction coil,
by Griffin, Garrick St. London, with vulcanite insulation, brass fittings, glass pillar insulating rods, Rhmkorff switch and battery terminals, on mahogany plinth base -- 14.5/8in. (37.2cm.) wide
by Griffin, Garrick St. London, with vulcanite insulation, brass fittings, glass pillar insulating rods, Rhmkorff switch and battery terminals, on mahogany plinth base -- 14.5/8in. (37.2cm.) wide