Antique Japanese Edo Period Samurai War Hat Nirayama Jingasa Kabuto

Antique Japanese Edo period 1600-1868, Samurai war hat Nirayama Jingasa kabuto made of finely hand-woven bamboo fiber with a black lacquered exterior, adorned on each side with gold samurai nobility family crest - moon. The interior is lacquered with red urushi.
CONDITION: Showing age and usage, signs of wear from time and long use, some lacquer loss around the edges, and minor crazing to the lacquer finish but remains in very good condition considering its age, still flexible.
Attached to this listing is a photograph of a samurai wearing this hat style during the Edo period.
MEASUREMENTS: 49cm x 25cm (19.29 inches x 9.84 inches)