Woodhouse and Rawson incandescent lamp, one of two (see note) One of two Woodhouse and Rawson incandescent lamps
Sensitometer lamp; ES base, tapered cylindrical envelope, W filament. 14v 2.95a, 38.4 Hefner candles. In use March 1937 to October 1938 in Works Laboratory. In cardboard tube. For DIN sensitometer (see 1990-5036/7906A). DIN standard incandescent lamp
Swan's Incandescent lamps-wedge joint between carbon and platinum prior to 1882 Swan's incandescent lamps-wedge joint
Large bulb incandescent lamp for use as a Secondary Standard of Light with booklet "On Large Bulb Incandescent Electric Lamps as Secondary Standards of Light" by J A Fleming, M. A., D.Sc., F.R.S., in which the bulb is described, c.1904 Large bulb incandescent lamp for use as a Secondary Standard of Light
Collection of incandescent electric lamps representing contemporary production, by Osram (G.E.C) Ltd, England, 1978 Collection of incandescent electric lamps representing contemporary production
Collection of old lamps, viz: 3 Nernst burners; 2 small electric incandescent lamps, and one Renier electric lamp (broken) Collection of incandescent lamps
ES base, tapered cylinder envelope. W W filament. 12v 20w. For DIN sensitometer (1990-5036/7906A). DIN standard incandescent lamp
Lane Fox's incandescent lamps, mercury contact to platinum, prior to 1882 Lane Fox's incandescent lamps