<https://warpathmilitaria.com/product/fine-koto-samurai-helmet-32-plate-iron-suji-kabuto-18/#product>
<http://schema.org/description>
"Classic Koto Samurai Helmet 32 Plate Russet Iron Suji Kabuto\r\n\r\nFine quality heavy iron hachi bowl that dates from late Momoyama to early Edo period is mounted with shakudo visor rim and shakudo tehen-no-kanamono...Original antique Maidate of brass and mixed metal...Lacquer Shikoro and liner are Edo period...Russet iron bowl appears to be unsigned, but I can not see the entire interior without removing the liner...A fine original Samurai iron fighting kabuto not a later parade helmet.\r\n\r\n(Fine Koto Samurai Helmet 32 Plate Iron Suji Kabuto)"
<https://warpathmilitaria.com/product/fine-koto-samurai-helmet-32-plate-iron-suji-kabuto-18/>