GS-3750-3999

Finned Through Hole 184mm (7.25") and larger
GS-3755

GS-3755
GS-3755
Size: 184mm X 88mm (7.25" x 3.5")
Example in Photo: CP (Canada)
Photo Credit: Shaun Kotlarsky
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
CP(Incuse) CPSky GrayCanada
GS-3905

GS-3905
GS-3905
Size: 222mm X 127mm (8.75" x 5")
Example in Photo: Allied Insulators (England)
Photo Credit: Gene Kingsley
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
Allied Insulators(Under-glaze Ink) (Allied Logo) / 2 M 38 / ENGLAND / 12815BrownEngland
GS-3954

GS-3954
GS-3954
Size: 260mm X 133mm (10.25" x 5.25")
Example in Photo: No Name (Thomas) (USA)
Photo Credit: Heath Rankin
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
No Name (Thomas)BrownUSA