Blue Osram lamp with box
1939-1945
Pressed-glass "PAR-56" sealed-beam reflector lamp
'Accent' 100 watt G.L.S. lamp
Rough service lamp
Eight 'pygmy' lamps
'Striplite' 60 watt lamps in 221 or 284 millimetre lengths
Six coloured lamps available in pink
Fineglow' 60 watt red-coloured lamp
Wrendal light bulb
Wrendal light bulb
Edison Swan Electric Co Ltd li
Wrendal light bulb
Light bulb
Wrendal light bulb
Mazda Electric Lightbulb
1938-1943
Mazda coiled coil lamp bulb 100W
1940-1960
Miniature 5-amp electric lamp in brass holder
Light bulb made by Edison Swan Electric Co. Ltd
circa 1950
Wrendal light bulb
Edison Swan electric bulb, John Rylands Library
Around 1900
Edison Swan Electric Co Ltd Ro
Osram light bulb
Electric light bulb
Floodlight lamp
Traffic controllamp
Airfield lamp
'Warmlight' 100 watt G.L.S. lamp
Bowl-silvered display lamp, 100 watt.
Blown-glass reflector lamps
Pressed-glass 'PAR 38' sealed-beam reflector lamp
light bulb
1910
Doto Electric Light Bulb
1938
Light bulb in original packagi
Projector Lamp
1945-1950
Early electric bulb, John Rylands Library
Incandescent Electric Lamps
Atlas 60W blue bulb
1930-1950
Light bulbs
Large G.L.S. lamp with single-coil filaments
Radio Spares Ltd incandescent lamp
light bulb
Light bulb
1926