An original would not have a completely round eye or poll opening for the handle (another tip off that it was a welded joint between the eye and the blade - rather than being forged as one unit).
Also, hawks typically use a tapered opening with a friction fit and are slid on from the top of the opening up a tapered handle - rather than a straight or flared top poll opening - like an axe head that would be slid down from the top of the handle to a hard stop - and the handle top flared out with wedges to hold it in place.