One of eighty-six early incandescent lamps. Carbon
One of eighty-six early incandescent lamps. Carbon filament lamp, single elongated-loop filament, attached to lead inwires passing through quick seal. No filamnet supports. Tapered bulb, clear.Toppip. Tapered brass base continues line of bulb,plaster filled, two tags stick out from base for connection. Manufacturer not specified. No markings.