Is this a Native America tool?

[Walkeri2]

Found on northern Oregon beach, comfortable in hand and looks worked into a flat edge and point

 

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[bradyboy]

id say natural - imo
brady

 

[jewelerguy]

2nd pic looks possibly worked. In my opinion, if it was worked by man it was discarded

 

[Tony in SC]

That's a close call. Does looked worked? Try posting over on the North American Indian artifact forum.

 

[Back-of-the-boat]

It looks like it was worked to me but it could have been discarded for some reason or another so I would say debitage.