Ok guys! I just found this this morning. It was about 7"down. Looks like a spike bayonet to me, but cant find any pics just like it. Any ideas or am I wrong. Shown beside no4 Enfield bayonet for size.
Hmmm. I had someone on Facebook suggest maybe a hay rake tooth. Not sure though because of the raised rib and the fact that the "channel" runs parallel to the spike.