grouped for convenience, four wooden plates of irregular shape. Holes are possibly for points of suspension in centre of gravity experiments. Different woods and various quality of finish
Cat skin, cream, ginger, brown and black markings on fur; one patch on rear side, used for electro statics. Used in lecture demonstrations for generating charge by rubbing
a brass balance arm with marking 1 to 12 on each arm and grade marks every half unit. A metal pointer is fixed to the upper edge of the balance centre; part of a weighing balance mechanism
a hollow cylinder of brass with a cross bar forming a long armed 'T'. There is a pin hole at each end of the 'T' bar. The cylinder has a decorative knob on one end, the other end being open and slightly serrated as if for cutting