Kuroda Nagamasa's Iconic Armor at the Battle of Sekigahara.

The Fascinating Story of the Famous Ichinotani Helmet is Deeper Than You Think.

Kuroda Nagamasa’s iconic armour is designated a National Important Cultural Property, which is basically one rank below National Treasure, and is maintained in the Fukuoka City Museum. It is officially listed as the Ginpaku Oshi, Ichi-no-Tani Nari kabuto, Kuro Ito Odoshi Go-Mai Do Gusoku.