#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
  part:  #visor
  part of:  #body_armor
  subtype:  #armet  a medieval helmet with a visor and a neck guard
  subtype:  #basinet  a medieval steel helmet
  subtype:  #casque  (15-16th century) any armor for the head; usually ornate without a visor
     subtype:  #casquet__casquetel  a light open casque without a visor or beaver
  subtype:  #heaume  a large medieval helmet supported on the shoulders
  subtype:  #morion__cabasset  a metal helmet worn by common soldiers in the 16th century
  subtype:  #pickelhaube  a spiked helmet worn by German soldiers
  subtype:  #sallet__sallade  a light medieval helmet with a slit for vision

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