Brookfield CD 147 Spiral Groove Green Aqua Glass Insulator with Peg

Beautiful near perfect condition Brookfield CD 147 spiral groove green aqua glass insulator is a rare find for collectors of antique insulators. Manufactured in the United States and patented on October 8, 1907, the gorgeous green and aqua glass colors and striations created by impurities are eye-catching. Features a unique spiral groove design making it a valuable addition to any collection.