A group of 4 Scientific Instruments i) a mahogany cased Telegraph (Morse) Indicator and Voltage detector c.1900, height: 18 cm ii) a mahogany cased Electroscope stamped: P. Harris & Co. Ltd, height: 16.5 cm iii) a pair of Leyden jars, height: 15.5 cm, diameter 8 cm (jar) iv) a HV Discharger length 34 cm