A KOTŌ KATANA IN ATTRACTIVE MOUNTS Muromachi period (1333-1573), 16th century Of honzukuri, iorimune, ko-gissaki configuration with a slight koshizori curvature forged in itame hada with a ko-gunome tempered edge ending in a midare komi bōshi, the ō-suriage tang with later file marks, with a one-piece gilt habaki; the 19th-century koshira-e mounted with shakudō nanako fittings, comprising a black-lacquer saya fitted with a kozuka chiseled and inlaid in gold with a courtier's hat and various arti