Spangenhelm
Framework helmet of crossed metal bands
The spangenhelm is a helmet of segmented construction, made by setting metal bands (the spangen) crossing in an arch to form a framework and filling the gaps between them with metal plates. Usually a brow band and several arching bands meeting at the apex were riveted together to make the skeleton, and the panels between were filled with iron or bronze plates to form a roughly conical shape. A helmet beaten in one piece from a single sheet of iron took great skill, but the spangenhelm, its parts made separately and assembled, could be made far more easily and quickly. For this it was supplied in quantity and became the most common helmet of early-medieval warriors, Germanic, Frankish, Byzantine, and Viking alike. The form with a nasal covering the nose was the most common, and some had cheek plates or a mail curtain covering the back added. Because the parts were made separately, several metals could be mixed, and countless variants exist by region and age.