орудие

French 320 mm railway gun. commons.wikimedia.org/wiki/Category:French_32_cm_sliding_...

and de.wikipedia.org/wiki/Schneider_320_mm_Mle_1870/93

"The Canon de 155 Grande Puissance Filloux (GPF) mle.1917 was a 155 mm cannon used by the French Army during the first half of the 20th century. This gun was designed by French one Colonel L.J.F. Filloux to fill a vital French Army requirement for a heavy artillery piece. The design proved a success and became the standard heavy field gun of the French from 1917 through to the end of World War II. This weapon was pressed into service as soon as it was made ready to stabilize the shortage of such weapons in the French inventory. This weapon became the "Canon de 155 Grande Puissance Filloux mle 1917", named by French Army as the Canon de 155mm GPF (Model of 1917). During World War 1, the gun was eventually taken on by the American Expeditionary Force as a standard long-range artillery piece.[3] At the beginning of World War II the French guns were pulled out of reserve storage, and 24 of these guns were mobilized/on active duty in May-June 1940." en.wikipedia.org/wiki/Canon_de_155mm_GPF