A Viking Chainmail Helmet is a type of helmet that was worn by the Norse warriors in the medieval period. It was made of metal rings that were linked together to form a mesh that covered the head and neck. The helmet also had a nose guard that protected the face from sword slashes and arrows. The chainmail helmet was based on the Gjermundbu Helmet, which was found in Norway in 1943 and is the only complete Viking helmet ever discovered. The helmet was often decorated with brass ornaments and a plume of animal hair, such as a horse or lion. The helmet was designed to provide maximum protection and intimidation but also limited the vision and hearing of the wearer. The helmet was a symbol of Viking culture and warfare and was used from the 9th to the 11th century.