In the far past, did Japan or other samurai sometimes really wear Oni (demon) masks when going into battle? - Quora
![File:Hannya noh mask, Japan, Meiji period, carved wood, lacquer - Montreal Museum of Fine Arts - Montreal, Canada - DSC09555.jpg - Wikimedia Commons File:Hannya noh mask, Japan, Meiji period, carved wood, lacquer - Montreal Museum of Fine Arts - Montreal, Canada - DSC09555.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/2/22/Hannya_noh_mask%2C_Japan%2C_Meiji_period%2C_carved_wood%2C_lacquer_-_Montreal_Museum_of_Fine_Arts_-_Montreal%2C_Canada_-_DSC09555.jpg)
File:Hannya noh mask, Japan, Meiji period, carved wood, lacquer - Montreal Museum of Fine Arts - Montreal, Canada - DSC09555.jpg - Wikimedia Commons
![Giappone, periodo edo, maschera no di tipo hannya, XVII sec. - Wood carving - Wikipedia | Japanese hannya mask, Japanese mask, Japanese noh mask Giappone, periodo edo, maschera no di tipo hannya, XVII sec. - Wood carving - Wikipedia | Japanese hannya mask, Japanese mask, Japanese noh mask](https://i.pinimg.com/originals/2f/b1/b2/2fb1b2125a06a9049a149c14103d24e0.jpg)