Part of a tramway overhead wiring system, supplying electricity to power the tram. Two devices bolted together; a 'Hanger' and an 'Ear'. Together these devices suspend the tramway trolley wire from the 'side bracket', or a 'span wire'.Historical EquipmentTwo devices bolted together; a 'Hanger' and an 'Ear'. The ear is a '4 screw' ear. Together these devices suspend the tramway trolley wire from a 'side bracket', or a 'span wire'. There is a short piece of trolley wire attached to the ear.68/16 stamped on one sidetramways, equipment, trolleywire