Head-shaped samurai helmet with hamaguri (clams) side ornamentMuromachi period (16th century)Refurbished during Edo period (18th century) This samurai helmet is made of five iron plates that form a flat surface that has been lacquered in black. Antique samurai helmets of this type were originally made in the late Muromachi period and were became for their functionality. With such a simple design they were actually easy to produce but could be made with thick and resistant iron plates. Because of its shape, this samurai helmet is often referred to as “zunari” (head-shaped),...