The Canon de 155 C modèle 1915 Saint-Chamond was a French howitzer used during World War I. It was based on a private prototype of a 150 millimetres (5.9 in) howitzer presented to the Mexican government in 1911. The French government ordered 400 Saint-Chamond howitzers in 1915, these being delivered starting in late 1916. Small numbers of Saint-Chamond howitzers were given to the Serbian and Romanian armies towards the end of World War I. The Saint-Chamond howitzer served in the French Army after World War I and were mobilised at the outbreak of World War II. Finland bought 24 Saint-Chamond howitzers during the Winter War and these served until the 1960s. The German Army captured 200 Saint-Chamond howitzers after the fall of France and used these as field guns and coastal defence guns unti