Lithograph after Robert Dudley from 'The Atlantic Telegraph', a book by W H Rusell with 26 illustrations by Dudley, published in 1866. This cable was broken and lost on the unsuccesful first attempt by the 'Great Eastern' to lay a transatlantic telegraph cable in 1865. During the succesful 1866 voyage a new cable was laid and the broken 1865 cable was repaired. This established the first permanent telegraph cables acros the Atlantic, reducing communication times from the length of a sea voyage to a few seconds.
© Science Museum / Science & Society Picture Library