We are also unable to determine what the curved 'sword' blade is for. The holes make it obvious that it was meant to be attached to something, and perhaps if we knew what that something was, we could provide a better answer. It could plausibly be a blade for some sort of industrial machine. We checked some of the more obvious uses for such a blade, and could identify no commercial machine which would use it. However, the report indicates that this blade was also hand forged, and as such, may have been intended as a repair piece for some old-fashioned piece of equipment.