Etchu zunari kabuto, hotoke nimai dou gusoku, owned by Ii Naomasa (1561-1602), one of the four guardian warlords of Tokugawa Ieyasu. Momoyama period, 16th century. The units Naomasa commanded on the battlefield were notable for being outfitted almost completely in blood-red armour for psychological impact, as such, his unit became known as the "Red Devils". Gift of the Ii family. Hikone Castle.