*l.a. guns

Saint-Chamond Canon de 240mm Mle1918 L/51 railway gun prototype

Manufactured by FAMH in Saint-Chamond, France c.1918-26, bought out by Schneider&Cie c.1924, then sold to the Japanese army c.1930 as the Type 90 Schneider gun.
240mm caliber gun, 59km range, 360 degrees rotating railway mount.

Part of the French long range artillery program of the interwar years, arguably one of the most successful prototypes.