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
White porcelain single shed insulator with galvanized iron hood
Four white porcelain insulators for aerial lines, 1820-1877
1820-1877
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.
White porcelain insulator for aerial lines
1820-1877
Glass insulator 15" in diameter in metal mount
1968
Insulator for pole mounted telegraph wires
two 15" ebonite insulators, 1900-1950
1900-1950
Insulator, porcelain cut-in insulator
1960
Pandrol 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
Pandrol insulator
insulator
Bell type insulator
Strain insulator
Globe Type Strain Insulator
Spanwire Insulator
Distribution insulator
Galavanised Mild Steel Single Clevis Giant Strain Insulator
3" Porcelain Loop Insulator
Glass insulator in metal mount
1968
Insulator, BR, 4mm blue plastic insulator GRN
One porcelain insulator for 220
"Armourlight" Pin Insulator type 1053
"Armourlight" Disc Type Insulator B.S.A. 30.7
Pin type insulator, (type P.1628) with spindle
One pair of L,t, porcelain insulators
Sectioned cap-and-pin insulator, c.1960
1960