The Canon de 194 mm Modèle 1887 was a turret mounted medium-caliber naval gun used as the main armament of a number of armored cruisers of the French Navy during World War I.
The Mle 1887 guns were typical built-up guns of the period with a rifled steel liner and several layers of steel reinforcing hoops.
The guns used an interrupted screw breech and the new smokeless powder of the period.
[1] Ships that carried the Mle 1887 include: The Mle 1893-1896 used separate-loading ammunition with two bagged charges weighing 18.8 kg (41 lb).