"Iron Fan" redirects here. For the Journey to the West character, see Princess Iron Fan.
The Japanese war fan, or tessen (Japanese: 鉄扇,てっせん, romanized: tessen, lit. '"iron fan"'), is a Japanese hand fan used as a weapon or for signalling. Several types of war fans were used by the samurai class of feudal Japan and each had a different look and purpose.[1]