Wooden pillar insulators, 1900-1950
1900-1950
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Insulators used for Morse's telegraph, 1835
1835
Set of three metal-hooded link insulators
Post Office insulator No. 16
White porcelain insulator for aerial lines
1820-1877
White porcelain insulator for aerial lines
1820-1877
White porcelain insulator for aerial lines
1820-1877
3" Porcelain Loop Insulator
Galavanised Mild Steel Single Clevis Giant Strain Insulator
Spanwire Insulator
Globe Type Strain Insulator
two 15" ebonite insulators, 1900-1950
1900-1950
White porcelain single shed insulator with galvanized iron hood
Insulator for pole mounted telegraph wires
Maseart insulator, one of two. As used by Kew Observatory, Kew, Surrey, England.
Maseart insulator, one of two. As used by Kew Observatory, Kew, Surrey, England.
Glass insulator 15" in diameter in metal mount
1968
Four white porcelain insulators for aerial lines, 1820-1877
1820-1877
White porcelain insulator for aerial lines
1820-1877
Third rail insulator, Lancashire & Yorkshire Railway
1916
Globe Strain Insulator
Galvanised Mild Steel Single Clevis Globe Strain Insulator
4 3/8" Porcelain Loop Insulator
Porcelain Insulated Section of Insulator for Grooved Wire
Shackle Type Porcelain Insulator Open Class
Loop Insulator from Overhead Electrical Equipment from Great Indian Peninsular Railway
Chain Type Span Wire Insulator
Insulator, porcelain cut-in insulator
1960
Bell type insulator
Strain insulator
Pandrol insulator
Pandrol insulator
insulator
Distribution insulator
33 K.V. Pin Insulator
275 KV upright insulator
275 KV suspension insulator string
Two 33 KV station post insulators
"Armourlight" Pin Insulator type 321
"Armourlight" Disc Type Insulator B.S.A. 10.5 1/2
Hewlett type insulator I.7625, quartered sample
10,000 lb. cap and pin type insulator
Unit from a 132 Kv. post insulator
High tension porclain insulator shackle type Y3234
Set of 3 Hewlett type insulators
11 KV pin insulator
33 KV line post insulator
Two Maseart insulators
Glass insulator in metal mount
1968