These 14 vintage porcelain electrical insulators are a rare find from the early 20th century in the United States. Measuring 3 1/2 inches in length, they are of the knob and tube style, designed to provide insulation in electrical systems. Made of durable white porcelain, these antique insulators are perfect for collectors of vintage lighting or those interested in the history of electrical wiring. This set of 14 insulators offers a glimpse into the past and adds a nostalgic touch to any collection or restoration project.
