The original of the kabuto (helmet) of the Dragon Armour is interesting inasmuch as the bowl of the helmet came from the Momoyama period. The suji bachi style of bowl, with overlapped and riveted plates was typical of the finest helmet makers (katchu-shi) of this period, borne out by the signature of the Saotome smith ''Ienao'' on the back plate. The menpo (mask) is a typical ressei men of the type made in Nara.
I like this because there are multiple masks and each are very different my favorite is the middle one in the bottom.
Uncle Oni Mask 316 Japanese Noh Style Fiberglass by TheDarkMask