Momoyama (1573-1615) or Edo (1615-1868) period, 16th/17th century with modern lacquer Of ten triangular plates with standing ridges riveted together to form a conical bowl and fitted with a slightly concave mabizashi, all lacquered red, the rear mounted with a five-lame Hineno-style shikoro finished in green ishimeji lacquer and laced in blue with white highlights 9 1/4in (23.4cm) high, the helmet bowl only