The extra=literally `long wrapping` is a type of traditionally made Japanese sword (nihonto) with an extra long handle, used by the samurai class of feudal Japan. ==History== The production of swords in Japan is divided into specific time periods: jokoto (ancient swords, until around 900 A.D.), koto (old swords from around 900–1596), shinto (n..... Found on http://en.wikipedia.org/wiki/Nagamaki