Two boxes flash bulbs, Philips "Photoflux" PF 5/97, blue, each containing five bulbs Two Boxes Philips Photoflux Flash Bulbs
"Nevitron" mercury arc rectifier bulb made by Nevelin Co. late 1950s type R51G 1714 "Nevitron" mercury arc rectifier bulb
Will and Varrentrapp's nitrogen bulb, [original broken March 1977, reconstruction on display] Found broken and relocated. (AW) Will and Varrentrapp's nitrogen bulb, London c. 1875 circa 1875
Spherical glass light-bulbs 4, with pip, bayonet cap, squirted tungsten filament, and having S in lozenge etched on glass, 105r engraved on cap. (Apparently used above a billiard table in Balham, London). 100 volts, made between 1900-1915 Spherical glass light-bulbs 4
Nine foil filled flash bulbs with a bayonet ap. Marked A.M. 5C/542. In wartime pack. General Electric Company, England, c.1940. Sashalite Photoflash Bulbs 1935-1945
4ft. probe and aspirator bulb as used in Durham Coalfield from 1967 4ft. probe and aspirator bulb as used in Durham Coalfield from 1967
Wall light with bulb holder made of phenol formaldehyde, rectangular in shape, with several square shoulders, unsigned, English, 1920-1940 Wall light with bulb holder made of phenol formaldehyde 1920-1940