This vintage antique insulator is made of white ceramic porcelain with a glazed finish, measuring 3 inches in height. It is unmarked, adding to its mysterious appeal and potential rarity. The insulator is a unique collectible item, likely crafted in the United States, showcasing traditional craftsmanship and design from a bygone era. Its unmarked nature adds to its character and charm, making it a desirable piece for collectors of vintage insulators or ceramics.