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Experimental television receiver used by JL Baird in demonstration at Royal Institution, 1926
Demonstration model of Babbage's Difference Engine No. 1, 19th century.
Computing & Data Processing
Quarter-plate `Cameo' camera used to take 'second phase' of Cottingley Fairies photographs, 1918-1920
Hand perforator and copy stand for Wheatstone automatic telegraph system, 1890-1910