of Grand Buildings, Trafalgar Square, London, WC2. Telephone: Whitehall 3736. Works at Dartford, Kent
1947 British Industries Fair Advert as manufacturers of Precision Measuring and Indicating Instruments including Resistance, Capacitance and Induction Bridges, Moving Coil Meters (A.C. and D.C.), Potentiometers, Radium Detectors, Light Counters, X-ray Dosage Meters, Resistance Boxes, Moisture Meters. (Scientific and Optical Section - Olympia, Ground Floor, Stand No. A.1102) [1]
1957 Acquired by C. E. Harper Aircraft Co.
Consisted of 2 divisions - electronics and pneumatics
1959 New factory at Dartford[2]
By 1960 was part of Harper Engineering and Electronics
1963 Elliott Automation acquired Baldwin Instrument Co of Dartford, which had 2 areas of operation: nucleonic instrumentation and fluid power equipment, both complementary to Elliott's existing acitivities[3].
1967 Baldwins and Isotope Developments were combined in one location at Beenham, Berks[4]
By 1967 was part of Isotope Developments, of Aldermaston, another part of the Elliott Automation group; Isotope Developments became part of Nuclear Enterprises (G.B.) of Edinburgh[5]