What 400 year old German company was the premier weapons manufacturer for railway guns in World War 1 & 2?
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.
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