About this objectCollection of four unglazed oblong ceramic insulators. Part 1 is the largest with a step across the middle on the top and three holes along the length. Underneath are two round broken cylindrical protruberances. Parts 2 and 3 have a flat top with a cross shaped slot and are hollow underneath. Part 3 consists of two parts fused together. Part 4 is the smallest and has a flat top with a rim and bevelled base. It has a large slot across the length. Assumed to have been dug from the Crown Lynn site.