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helm
A medieval-style helmet that completely encloses the head. It offers absolute protection at the expense of being cumbersome and limiting vision greatly.
This is the classic knightly armor and is generally built around the entire suit of armor. This is separate from a helmet with a built-in face mask, since that is the addition of a component to the helmet, while the helm is one-piece.
For the steering mechanism of a ship, see ship's wheel.
Examples
See also
This tag implicates helmet (learn more).
