Copy of the receiver and alarm call of Schilling's electric telegraph, 1870-1877 Telecommunications 1870-1877
Treadle-operated 'Minerva' platen printing press made by H. S. Cropper and Co. Printing & Writing c.1870
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