GS-4750-4999

X Style 184mm (7.25") and larger
GS-4882

GS-4882
GS-4882
Size: 222mm X 127mm (8.75" x 5")
Example in Photo: Dulmison (England)
Photo Credit: Gene Kingsley
Direct link to this insulator:
ManufacturerInsulator MarkingsColorCountry
Dulmison(Under-glaze Ink) (Dulmison Logo) / Dulmison / DK10028 / (Year) / 4075 BrownEngland