After inspecting this weapon, one can guess that at one time this was no more than a common garden sickle. Usually referred to as ni-cho kama (nee-choh kah-mah), which translates into a pair of kama used in a combative manner. The blades can be used, of course, to cut with, the back of the blade can be used like a club to strike with, and the handle can be used to block and punch with.