Railway gun - Wikiwand

A railway gun, also called a railroad gun, is a large artillery piece, often surplus naval artillery, mounted on, transported by, and fired from a specially designed railway wagon. Many countries have built railway guns, but the best-known are the large Krupp-built pieces used by Germany in World War I and World War II. Smaller guns were often part of an armoured train. Only able to be moved where there were good tracks, which could be destroyed by artillery bombardment or airstrike, railway guns were phased out after World War II.

Cannon 102/35 Model 1914 - Wikiwand

File:French 305 mm sliding mount railway gun.jpeg - Wikimedia Commons

Obusier de 200 Pérou sur affût-truck TAZ Schneider - Wikiwand

Type 90 240 mm railway gun - Wikiwand

8-inch gun M1888 - Wikiwand

102 mm 60 caliber Pattern 1911 - Wikiwand

Trunnion - Wikiwand

7-inch/44-caliber gun - Wikiwand

Canon de 240 L Mle 1884 - Wikiwand

28 cm K L/40 Kurfürst - Wikiwand

BL 12-inch railway gun - Wikiwand