Ikeda and Shibata have teamed up to make this range of knives, Ikeda hammers out the knives and Shibata sharpens and finishes the knives in his work shop in Fukuyama city, Hiroshima, Japan. The knife range is named after a famous ship called the Ironclad Kotetsu, which was a warship used to ram wooden boats in the 1869 and had a similar shape to the knives you see.