Subtypes

	"Nara Men" with wrinkle's on the broad nose, generally mass produced in the Nara area
	"Ressei Men" "furious power": a half mask with wrinkles, teeth and usually whiskers, savage violent expression.
	"Ryubu-bo" "distinguished", "generous and relaxed". A half mask with some wrinkles (sometimes smooth) no whiskers and a noble expression.
	"Uba ho" "aged woman" toothless, a small mouth no wrinkles.
	"Bijo" "beautiful woman" toothless, smooth face, large mouth.
	"Emi-bo"
	"Shiwa-bo"
	"Oie-bo"
	"Tengu-bo" Mask like the face of a mythical bird.
	"Okina bo" with very long beard or whiskers
	"Neri ho" Mask made of leather.
	"Genjoraku" A Bugaku / Gigaku dance related mask.
	"Okina ho" resembles an aged man : Okina mask of Noh theatre's origin.
	"Karura" A mythical bird like mask.
	"Kotakuraka-men" The nose looks like a crow's beak "karasu", with downward sloping nose.

Subtypes

	"Etchu bo" or "Eccyu bo" Plain rounded shape covering mainly the chin.
	"Tsubame bo" or "Tsubakuro-Bo" "Embigata" "Yembi gata" "Swallow cheek" covers the chin and onto the cheeks, resembles a swallow tail.
	"Saru-bo" "Monkey cheek" covers chin, cheeks and frames the mouth

"orikugi" "ogarami"(meaning cord twining) "o tasuke no kugi" otayori no kugi" "odome" pegs, hooks or rings on the cheeks and / or studs on the chin to fasten the helmet cord
"ase nagashi no ana" hole to drain perspiration
"tsuyo otoshi no kubo" "dew dropping tube" external tube attached to the sweat running hole to drain perspiration
Whiskers and imperials
"Haguma" polar bear
"Shaguma" brown bear
"nuri saba" russet iron lacquer
"yadome" standing flanges to protect the chin cord
"yodare kake" or "suga" throat protector (guard) of scale plates or mail
"hon kozane" true scales
"kiritsuke kozane" false scales
"shineri kayeshi" standing edge

Any comments or additions are welcome
 

02 Karasu Tengu Menpo		20 Gold Lacquered Menpo
11 Black Lacquered		18 Menpo with a cut Yodarekake
Red Lacquered Menpo
12 Giant Red
06 Red lacquered Menpo		07 Red lacquered Menpo
Nara Menpo
03 Nara Russet Lacquered Menpo		01 Nara Brown lacquered Menpo
05 Nara Russet Lacquered Menpo		08 Nara Russet Lacquered Menpo
19 Menpo with Moustache and imperial		21 Black menpo with Matching Kabuto
24 Nara Menpo		M02 Nara Menpo with large bristles
04 Nara Black Lacquered Menpo
Hanbo
13 Brown Hanbo		14 Black Hanbo
22 Hanbo with matching Momonari kabuto		23 Hanbo with matching Zunari kabuto
Russet iron
15 Russet iron with Moustache		16 Iron small Menpo
17 Iron Menpo Nose Missing
09 Russet Iron Menpo		10 Russet Iron Menpo with Yadome
Nodowa  喉輪
Late Edo period Nodowa		Early Edo period Nodowa