GS-4250-4499 X Style 101mm - 146mm (4"

GS-4255

Size: 101mm X 69mm (4" x 2.75")
Example in Photo: No Name (O-B) (USA)
Photo Credit: Shaun Kotlarsky

Direct link to this insulator:

Manufacturer	Insulator Markings	Color	Country
No Name (O-B)		Light Brown	USA

GS-4265

Size: 107mm X 76mm (4.25" x 3")
Example in Photo: No Name (CP) (Canada)
Photo Credit: Barrett Nicpon

Direct link to this insulator:

Manufacturer	Insulator Markings	Color	Country
CP		Yellow	Canada
Unknown		Brown	Canada

GS-4287

Size: 120mm X 69mm (4.75" x 2.75")
Example in Photo: BT (England)
Photo Credit: Gene Kingsley

Direct link to this insulator:

Manufacturer	Insulator Markings	Color	Country
British Telecom	(Under-glaze Ink) BT / (Year) / A 11	Brown	England
Bullers	(Under-glaze Ink) (Logo) / 10646	Gray	England

GS-4300

Size: 127mm X 88mm (5" x 3.5")
Example in Photo: No Name (O-B) (USA)
Photo Credit: Walter Baumgardt

Direct link to this insulator:

Manufacturer	Insulator Markings	Color	Country
No Name (O-B)		Brown	USA

GS-4370

Size: 133mm X 88mm (5.25" x 3.5")
Example in Photo: No Name (USA)
Photo Credit: Bill Vincent

Direct link to this insulator:

Manufacturer	Insulator Markings	Color	Country
Unknown		Light Brown	USA

GS-4497

Size: 146mm X 101mm (5.75" x 5”)
Example in Photo: No Name (O-B) (USA)
Photo Credit: Bill Sagliano

Direct link to this insulator:

Manufacturer	Insulator Markings	Color	Country
No Name (O-B)		Brown	USA

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