Carolingian, Northern Europe. Iron.
Private collection, USA
Such a spearhead would be mounted on an ash shaft some six feet in length or more, the lugs prevented excessive penetration.
It was a thrusting, as opposed to a throwing weapon and could be used by either a mounted warrior or one on foot.
With blade of flattened diamond section with a lug or wing at either side of the base.
Size: Length 81 cm / 32 in