What 400 year old German company was the premier weapons manufacturer for railway guns in World War 1 & 2?
Railway gun: 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. Railway gun:  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. Krupp: The Krupp family (see pronunciation), a prominent 400-year-old German dynasty from Essen, have become famous for their production of steel, artillery, ammunition, and other armaments. Krupp:  One of the most powerful dynasties in European history, for 400 years Krupp flourished as the premier weapons manufacturer for Germany.
Krupp