About this objectCollection of three rectangular block shaped ceramic insulators. Parts 1 and 2 are the same shape, with a flat base, straight sides and two troughs extending the length from one enclosed end that has two archways for wires to pass through. Part 3 is similar in shape with only one enclosed end with two archways, no other sides just a central division wall. All have screw holes and are glazed. Assumed to have been dug from the Crown Lynn site.