Yes. My family had a polished stone axe head that was found plowing up bottom land in Wisconsin. I often envisioned how difficult it would be to attempt to cut down a tree with that tool, and how many hundreds of hours it must have taken to shape it.
It was not chipped. It was ground and polished. One end had a little flat ground on it for pounding with. The other was “sharpened” if you can call it that, to and edge that would damage a tree when it was struck... There were indentations for lashings.
Where he was making them was very close to a creek and chippings are all over the yard. In a few years with the chippings laying in the ground how would the Gooburmunt know the difference? I know the difference between a recent handcraft and an original looking at them for tell tale giveaways but I bet you not once agent in that raid would know LOL.