Victorian illustration to download showing men making a huge metal boiler for a steamship. The boiler is made from curved panels riveted together; the men are hammering in rivets. In the foreground is a mobile forge to heat the rivets. Behind it men beat a sheet of metal into a panel. This illustration was sketched at the Vulcan works, Clydeside, Glasgow, which at this time (1843) was owned by the ‘father of Clydeside shipbuilding’, Robert Napier.