#helmet.armor_plate  armor plate that protects the head
  supertype:  armor_plate__armorplate__armour_plate__armor_plating__armorplating__plate_armor__platearmor__plate_armour__platearmour  specially hardened steel plate used to protect fortifications or vehicles from enemy fire
  subtype:  armet  basinet  casque  heaume  morion  pickelhaube  sallet
  part of:  body_armor
  part:  visor__vizor  a piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face

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