Myochin iron hoshi-bachi helmet and iron mempo

A well formed koshi zan with deep mabishashi, small tate mitsuishi[stone brick] mons, fitted with four-lame black lacquered shikoro,stag antler maedate and a Nara russet iron mempo with five stage ita-suga heigth of bowl 5". This Kabuto was dated by Sotheby's as 18th century and the mempo could date earlier.