six-stage super heterodyne receiver processed on the ECME system, 1936-1955 Radio Communication 1936-1955
Print, 'Searching Fault' scene on 'Great Eastern' during the laying of the first Atlantic cable, 1865-1867 Telecommunications 1865-1867
Print, 'Interior Tanks', a scene on 'Great Eastern' during the laying of the first Atlantic cable, 1865-1867 Telecommunications 1865-1867
Cybernetic tortoise, developed to help with studies on brain function Psychology, Psychiatry & Anthropometry 1950-1952
Metal key for the writing desk of the Office of the Metropolitan Commissioners in Lunacy Psychology, Psychiatry & Anthropometry 1828-1914
Glass tube containing a portion of the first submarine cable laid between Dover and Calais, 1875-1913 Telecommunications 1875-1913