GS-4000-4249

X Style 63mm - 95mm (2.5" - 3.75")
GS-4210

GS-4210
GS-4210
Size: 88mm X 63mm (3.5" x 2.5")
Example in Photo: No Name (O-B) (USA)
Photo Credit: Shaun Kotlarsky
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
No Name (O-B)BrownUSA
GS-4220

GS-4220
GS-4220
Size: 88mm X 88mm (3.5" x 3.5")
Example in Photo: No Name (Unknown)
Photo Credit: Bob Berry
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
UnknownTealUnknown
GS-4246

GS-4246
GS-4246
Size: 95mm X 69mm (3.75" x 2.75")
Example in Photo: Bullers (England)
Photo Credit: Gene Kingsley
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
Bullers(Recess-embossing) BULLERSDark GreenEngland
UnknownBrownUnknown