Original antique light bulb with a drawn tungsten filament, probably made in England just after the turn of the century. This vintage light bulb has a circular single coil filament that is not supported by a glass stem. The only markings are hand written inside the base & could be 40 (as in 40 watts) or 04 (as in 1904). It has an early brass & ceramic UK standard bayonet cap fitting. Shown glowing at around 50 volts for the photograph. Click on the photo for a bigger image.