ST-6625-6749

158mm - 247mm (6.25" - 9.75")
ST-6675
ST-6675
ST-6675
Size: 177mm (7")
Example in Photo: JD (USA)
Photo Credit: Mid Norris
Direct link to this insulator:
ManufacturerInsulator MarkingsCap MarkingsColorCountry
JD(Under-glaze Ink) (JD Logo)BrownUSA
JD(Under-glaze Ink) (JD Logo)JD 701Light BlueUSA
JD(Under-glaze Ink) (JD Logo) / MFG (Date)Blue GrayUSA
ST-6700
ST-6700
ST-6700
Size: 101mm (8")
Example in Photo: No Name (J-D) (USA)
Photo Credit: Mid Norris
Patent: 1,329,770 - Patented Feb. 3,1920
Direct link to this insulator:
ManufacturerInsulator MarkingsCap MarkingsColorCountry
No Name (J-D)Light BlueUSA