Product Details

This item is a vintage ceramic or porcelain electric insulator, commonly collected as a historical electrical component. It is marked with "1974 W," indicating it was manufactured in 1974, likely by the Knox company which produced similar brown and white glazed insulators. These items were used to protect electrical wiring by isolating it from heat and moisture. They feature a glazed finish, often in chocolate brown or white, to deter vandals and provide durability against the elements.