The armour society meeting of May 2016 had as theme “Ko Myōchin”, the old Myōchin. Nine Myōchin kabuto from the Tenbun period (1532-1555) where brought by members of the society to look at the Myōchin smiths that were active in that time.
People interested in joining the Japanese Armour society can find more info here, and contact me at katchunobi [at] gmail [dot] com.