X-Y Plate measuring machine by Carl Zeiss, Jena, serial no.12945, with accessories. Used at the Royal Greenwich Observatory, Herstmonceux in East Sussex from 1960s t0 1990. X-Y Plate measuring machine by Carl Zeiss 1960-1965
Double-beam recording microdensitometer, Mark III CS, serial no. 620 by Joyce-Loebl & Co. Ltd., Gateshead-on-Tyne, on trolley with accessories Double-beam recording microdensitometer 1967-1975
Scale model of the Aerospatiale / Westland Puma Helicopter copper-clad for evaluation of radio / radar aerial polar diagram analysis and investigations Scale model of the Aerospatiale / Westland Puma Helicopter, with various payloads 1965-1975