Muromachi period (1333-1573), 16th century Constructed of 62 narrow iron plates riveted together to form an even profile, with a slight recession at the crown, the tehen kanamono tilted slightly forward, and the rear of the bowl swelling out gracefully, covered in thick black lacquer, the vertical ridges applied with fukurin and igaki of gilt brass meeting at the three-stage chrysanthemum tehen kanamono, the edge of the mabizashi also applied with gilt-brass fukurin below a gilt-copper riken kuwagata maedate decorated with a heraldic crest of a Templar cross within a circle, the helmet mounted with its original five-lame shikoro lacquered black and laced in blue kebiki-style lacing, the fukigaeshi applied with gilt-shakudo heraldic crests matching that of the kuwagata 7 1/4in (18.4cm) high, the helmet bowl only