a single fragmented, but possibly complete mail shirt have been excavated at the Gjermundbu farm. This helmet was made of iron and was in the shape of a rounded or peaked cap made from four plates after the spangenhelm pattern. The helmet has a rounded cap and has a "spectacle" guard around the eyes and nose that formed a sort of mask. , it is the only known example of a complete Viking helmet in existence. See also Viking Age arms and armour References External links University of Oslo. Kulturhistorisk museum Viking Helmet from Gjermundbu Villages in Buskerud