French screw steam floating battery la Foudroyante (1854) in 1859

Homeport Cherbourg, France, Laid down at Lorient, France on 20 August 1854 and launched on 2 June 1855. Machinery manufactured at Le Creuzot, France and delivering 225hp. Wood built. Armed with 18 guns.

Source
Hans Busk. The Navies of the World, London, United Kingdom, 1859.