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
Two pieces of solid conductor
Conductor
Cylindrical Conductor
Bone-conductor with head-band and separate components
Aluminium conductor
Aluminium alloy stranded conductors
Two examples of Spratt's lightning conductors
1860
Prime conductor from plate electrostatic machine, Galvani collection
1780-1798
Three solid aluminium conductors ("Solidal") for insulated cables
Solid aluminium conductors ("Solidal") for insulated cables
Rectangular wood and tinfoil conductor on glass rod
Four cylindrical conductors with attached rod or wire
Conductors and isolators
Armoured aluminium conductor
I/144, twin, aluminium conductor
Four 15" lengths of hard drawn copper stranded conductors
Brass conductor
Aluminium stranded conductor from outside sub-station
B.I. Wire Company's flexible concentric with 0.54 sq.in. conductor
1898