About this objectCellection of six round disc shaped ceramic insulators of varying sizes. Parts 1, 4 and 6 have four or more holes for wires and screws. Part 2 is broken, with a recessed centre and curved slot. Part 3 is much more basic inshape with bevelled rim top and bottom and one large central hole. Possibly hand made. Parts 1, 3 and 4 are terracotta. The others are grey vitrified colour, all unglazed. Assumed to have been dug from the Crown Lynn site.