Here's an unusual glazed porcelain unipart insulator formed onto a pedestal commemorating the 100 year anniversary of the invention of the 1897 Delta-Glocke (Delta Bell) insulator. Insulator is hollow inside and threadless. Stamped KWH with three triangles which is the logo for Keramische Werke (Porcelain Factory) Hermsdorf, a German insulator manufacturing pioneer.

Measures 7" x 7" on the base and approximately 6 1/2" tall.

The outside is in mint condition with two small flakes on the outer rim base. Never seen another one of these. First email gets this historical commemorative insulator for only $225 plus shipping. Thanks!