The Canon de 194 mm Modèle 1902 was used in sea-going battleships built between the mid- to late 1880s and 1905 before the advent of which ship?
HMS "Dreadnought"
Canon de 194 mm Modèle 1902 gun
The Canon de 194 mm Modèle 1902 was a medium-caliber naval gun used as the primary or secondary armament in both casemates and turrets of a number of French pre-dreadnoughts and armored cruisers during World War I.
 After World war I these ships were scrapped and some were later reused as coastal artillery in World War II
Pre-dreadnought battleship
Pre-dreadnought battleships were sea-going battleships built between the mid- to late 1880s and 1905, before the launch of HMS "Dreadnought" .
 Pre-dreadnoughts replaced the ironclad battleships of the 1870s and 1880s.
 Built from steel, and protected by hardened steel armour, pre-dreadnought battleships carried a main battery of very heavy guns in barbettes (open or with armoured gunhouses) supported by one or more secondary batteries of lighter weapons.
 They were powered by coal-fuelled triple-expansion steam engines.
Canon de 138 mm Modèle 1893 naval gun
The Canon de 138 mm Modèle 1893 was a medium-calibre naval gun of the French Navy used during World War I and World War II.
 It was carried by a number of ships built during the 1890s including the "Charlemagne"-class pre-dreadnought battleships. Guns from scrapped warships were later mounted on auxiliary ships during the 1930s. 135 mm /45 Italian naval gun
The Cannone da 135/45 OTO 1937 was a 135 mm (5.3 in) 45-caliber naval gun built for the Regia Marina in the late 1930s.
 Built as a response to the French Canon de 138 mm Modèle 1929, it was meant to have the same range as the widespread 120 mm gun, but with less muzzle velocity and less dispersion. Canon de 138 mm Modèle 1910 naval gun
The Canon de 138 mm Modèle 1910 was a medium calibre naval gun of the French Navy used during World War I and World War II.
 It was carried by the dreadnoughts of the "Courbet" and "Bretagne" classes as their secondary armament and planned for use in the "Normandie"-class battleships.
 It was used as the primary armament for the "Arras"-class sloops and planned for the La Motte-Picquet-class cruisers that was cancelled in 1915.
 It was also used in coast defense batteries during both World Wars. Canon de 75 modèle 1914 Schneider
The Canon de 75 modele 1914 Schneider was a French World War I piece of 75 mm artillery, designed and manufactured by Schneider et Cie in Le Creusot.
 Similar to the earlier Canon de 75mm Modele 1912 Schneider and also a derivative of Canon de 75 modèle 1897, it featured a longer barrel and an extended firing range. Canon de 305 mm Modèle 1893/96 gun
The Canon de 305 mm Modèle 1893/96 was a heavy naval gun used as the main armament of a number of French pre-dreadnoughts during World War I.
 It equipped the "Charlemagne", "République" and "Liberté"-class battleships as well as the unique battleships "Iéna" and "Suffren".
 It was also used as railway artillery in that war. Louis Filloux
Louis J. F. Filloux (1869-1957) was a French artillery officer.
 He designed several artillery pieces used in World War One, including the Canon de 155mm GPF, the Canon de 194 mle GPF, and the 370mm Filloux mortar.
 His highest rank was lieutenant colonel. Canon de 65 mm Modèle 1891
The Canon de 65 mm Modèle 1891 & Modèle 1902 were a family of widely used naval guns of the French Navy that were also used by the Ottoman Navy during World War I.
 Guns removed from decommissioned ships also saw use as coastal artillery and as fortress guns in the Maginot Line fortifications during World War II. Canon de 194 mm Modèle 1893-1896
The Canon de 194 mm Modèle 1893-1896 was a turret mounted medium-caliber naval gun used as the primary armament of a number of armored cruisers of the French Navy during World War I.