'Yellow Peril' powered wheelchair designed and made by Dan Everard for his daughter Ruth aged 22 months 1981
Unicam S70 Diffraction Camera for high Temperature work with X-rays with heater. Serial no.3134 1945-1950
Brass cylinder weight used for testing individual's perception of weight. Number '4' engraved on the base. Cambridge Instrument Co., Cambridge, 1893 Weight, from weight perception apparatus 1893
Brass cylinder weight used for testing individual's perception of weight. Number '10' engraved on the base. Cambridge Instrument Co., Cambridge, 1893 Weight, from weight perception apparatus 1893
Bernal's (Reproduction) X-Ray Diffraction Camera, 1948-1952 1948-1952 (original); 1965 (reproduction)