A group of 3 Scientific Instruments i) a Tangent Galvanometer maker: Philip Harris & Co. Ltd, Birmingham, England, height: 22 cm ii) a mahogany cased Linesman Detector dial marked: A. Kershaw, no. 1594, 1904, height: 6.3 cm, 8.7 cm x 8.2 cm (case) iii) a post office pattern Galvanometer Makers plaque: Siemens Bros & Co. London, height: 15.5 cm