Pear-shaped brass conductor on insulated stand
1900-1983
Cylindrical brass conductor on insulated stand
1900-1983
Spherical brass conductor on insulated stand
1900-1983
Bone-conductor with head-band and separate components
Conductor
Cylindrical Conductor
Aluminium conductor
Aluminium alloy stranded conductors
Prime conductor from plate electrostatic machine, Galvani collection
1780-1798
Two examples of Spratt's lightning conductors
1860
Rectangular wood and tinfoil conductor on glass rod
Solid aluminium conductors ("Solidal") for insulated cables
Three solid aluminium conductors ("Solidal") for insulated cables
I/144, twin, aluminium conductor
Armoured aluminium conductor
Four cylindrical conductors with attached rod or wire
Brass conductor
B.I. Wire Company's flexible concentric with 0.54 sq.in. conductor
1898