Viking Helmet

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This helmet has ‘spectacles' to protect the wearer from getting hit in the face

You may notice the lack of horns on the helmet
It is a popular misconception that the Vikings had horns on their helmets
See - 'A Viking Funeral'

If they did have helmets then they would have got in the way during a battle
The Anglo Saxons did have some horned helmets that they used for religious ceremonies