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

Homeport Toulon, France. Laid down at Cherbourg, France on 5 September 1854 and launched on 17 April 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.