That is very "outside the box" thinking! I can see it being plausible as these pieces were found within feet of each other.I’m thinking outside the box here. Your bipointed blade was hafted on one of the pointed ends like this pic I drew. View attachment 2114016
Why couldn’t the eccentric looking one have been hafted on the pointed end? The eccentric “base” would then become a specialized tool. Thoughts?View attachment 2114017