Mezzotint: portrait of Isambard Kingdom Brunel, by H. Cousins after J.C. Horsley, published 1858. Published by Henry Graves & Compy March 15th 1858, Printsellers to the Queen. 6 Pall Mall, 1858. On laid india [cut to] 53x41cm., platemark 50.2x37.8cm., image 40.5x32.7cm. With facsimile signature. After the oil by Horsley, 1857, now in the National Portrait Gallery, London. Portrait, TQL seated to L at table, looking front; holding pen, hands resting on drawings