Lost crow - it looks like a spoke shaves. What we'd like to see to be more definitive is a good picture of the inside of the crescent shaped indention (the area that potentially was the spoke shave). If it's a spokeshave for the most part it will be unifacially flaked in the working area creating a steep bevel to one side. I'm guessing you're good to go here, but hard to tell without a close up of that area.
Thanks,
Twitch