Engraving 'Conference of Engineers at the Menai Straits...', by John Lucas, 1858
Engraving. 'Conference of Engineers at the Menai Straits preparatory to floating one of the tubes of the Britannia Bridge'. Signed by Robert Stephenson. Painted by John Lucas. Engraved by James Scott. Published by Henry Graves and Company, Printsellers to the Queen, 6 Pall Mall, London. 25 January 1858.