The 38 cm SK L/45 "Max", also called Langer Max was a German long-range, heavy siege and coast-defense gun used during World War I. Originally a naval gun, it was also adapted for land service when it became clear that some of the ships for which it was intended would be delayed and that it would be very useful on the Western Front.
Obice da 305/17 was an Italian howitzer used during World War I. Produced by the Armstrong works in Italy between 1914 and 1917, approximately 30-44 were built. Originally the Obice da 305/17 Modello 15 was a stationary coastal defense gun but was later adapted to a mobile siege artillery role. A number also served during World War II.
The EOC 10 inch 40 caliber guns were a family of related guns designed by the Elswick Ordnance Company and produced by Armstrong Whitworth in the 1890s for export customers. EOC 10 inch 40 caliber guns were the primary armament of armored cruisers, ironclads and pre-dreadnought battleships built or refit during the 1890s. These guns and their licensed derivatives armed ships of the Argentine Navy, Imperial Japanese Navy, Regia Marina and Spanish Navy. They served in the Russo-Japanese War, Italo-Turkish War and World War I.
The Cannon 102/35 Model 1914 was a naval gun of the Royal Italian Navy in World War I and World War II, which was modified for shore based anti-aircraft, field artillery, railway gun and coastal artillery roles.
The Cannon 76/40 Model 1916 was a widely used naval gun on ships of the Royal Italian Navy during World War I and World War II. A very versatile weapon it was used as primary, secondary and tertiary armament on a number of ship classes. After being replaced aboard ships of the Royal Italian Navy it saw widespread use on land in a number of different roles such as coastal artillery, anti-aircraft gun and railroad gun during World War II.
The Cannone da 190/45 was a family of Italian naval guns that were the secondary armament of two classes of armored cruisers of the Regia Marina and Hellenic Navy built before World War I. The cruisers that they were aboard saw action in both world wars. It is also believed that spare guns may have been used as coastal artillery during World War II.
The EOC 8 inch 45 caliber were a family of related 8-inch (203 mm) 45 caliber naval guns designed by the Elswick Ordnance Company and manufactured by Armstrong for export customers before World War I. In addition to being produced in the United Kingdom licensed variants were produced in Italy and in Japan. Users of this family of gun included the navies of Argentina, Chile, China, Italy, Japan and Spain. This family of guns saw action in the Spanish–American War, Boxer Rebellion, Russo-Japanese War, Italo-Turkish War, World War I and World War II. In addition to its naval role it was later used as coastal artillery and siege artillery after the ships it served on were decommissioned.
The 152mm 45 caliber Pattern 1892 was a Russian naval gun developed in the years before the Russo-Japanese War that armed a variety of warships of the Imperial Russian Navy during the Russo-Japanese War and World War I. Guns salvaged from scrapped ships found a second life on river gunboats of the Soviet Navy during the Russian Civil War and as coastal artillery and railway artillery during World War II. In 1941 it was estimated that there were 196 guns still in use as coastal artillery. After independence in 1917 Finland was estimated to have inherited 100 guns and some remained in use until the 1980s. The last was decommissioned in 2003.
The Obusier de 370 modèle 1915 à berceau was a French Railroad Gun that saw action during the First World War and Second World War.
The Obusier de 400 Modèle 1915/1916 were French railway howitzers that saw action during the First World War and World War II. The mle 1915/1916 was the largest caliber railway howitzers in service with the French Army during the First World War.
The Obice da 280 was an Italian coastal defense and siege howitzer designed in 1884 by the British Armstrong firm and produced under license by the Ansaldo company during the late 1800s. It was used during both the First and Second World Wars.
The Canon de 19 modèle 1870/93 TAZ was a railway gun designed and built early in the First World War. It also saw action during the Second World War.
The Cannone da 149 G later known as the Cannone da 149/23 was an Italian fortress gun and siege gun which served with Italy during the Italo-Turkish War and World War I. Captured guns may have been used by Austria-Hungary.
The 15 cm Ring Kanone C/72 was a fortress and siege gun developed after the Franco-Prussian War and used by Germany and Portugal before and during World War I.
The 15 cm Ring Kanone L/30 was a naval gun and coastal artillery piece that was used by the German Navy before the First World War that was converted to a siege gun for the German Army during the First World War when the ships that carried it were decommissioned.
The Canon de 340 modèle 1912 à berceau was a French railway gun used by the French Army and the United States Army during World War I. The guns were used again by the French Army during World War II.
The Mortier de 370 modèle 1914 Filloux (MLE) was a siege mortar. It was designed before the First world war and was used during the First world war.
The Mortier de 293 Danois sur affut-truck modèle 1914 was a French railway gun and siege gun used by the French Army during World War I and World War II.
The Cannone da 381/40 AVS was an Italian railway gun that saw action during World War I.
The Cannone da 75/27 A.V. was an anti-aircraft gun developed in Italy during the First World War that also saw service during the Second World War.
