Columbia subject headings:
Harvard subject headings:
Iron industry and trade--Japan--History
Ironwork--Japan--History.
Japan--Antiquities.
Japan--History--To 645
Weapons, Ancient--Japan.
Yayoi culture.
Princeton subject headings:
Iron industry and trade--Japan--History--To 1500.
Ironwork--Japan--History--To 1500.
Japan--Antiquities.
Japan--History--To 645.
Weapons, Ancient--Japan.
Yayoi culture.