FRANCE – CIRCA 1890: Le Havre (Seine-Maritime). Maintenance of boats in the dock of Commerce, about 1900. (Photo by ND/Roger Viollet/Getty Images)
31st July 1863: An iron-cased Russian battery ship in dock. (Photo by Hulton Archive/Getty Images)
1865: A group of top-hatted ‘worthies’ in a shipyard. The liner Tancore can be seen in the background. (Photo by Hulton Archive/Getty Images)
For some stunning photos of shipbuilding in the Victorian era, see this collection taken from Retronaut.
My thanks to Malcolm Woods for the tipoff!