Varley's Lightning Protector, 1861
1861
Varley's lightning protector, 1856
1856
Varley's carbon lightning protector
Henley's lightning protector
Lightning protector (53)
Varley's globe vacuum lightning protector, 1861
1861
Plate and points lightning protector
Lightning protector (57)
Varley’s lightning protector for telegraph lines, 1861
1861