Forged iron 5 1/2” length. Hand forged with tapered shaft, the end flattened for embedding in a hard wood handle forming a T, and struck with a maker’s mark. The opposite end of slightly twisted rounded or scoop form. Viking ships were unique in that the hulls of overlapping planks were produced first and independent of the superstructure. The planks were overlapped and secured with rivet and rove fasteners, essentially a large head iron rivet secured with an iron gusset. Augers such as this were used to drill the holes in which the fasteners were seated. The presence of a maker’s mark is very unusual.