Here's a RARE Bennett style black composition insulator from the UK. Measures 2 7/8" (lowest base ring) X 3 1/2" tall. The actual base is only 2" wide (seen in the photo). This example is in excellent condition with a several scattered light use and rub marks. Seen in NIA website but not yet assigned a number. This is not ceramic or porcelain but is light like heavy resin.

First email gets this unusual style rare insulator for only $250 shipped. Thanks!