Native American Net Weight?

[Masterdan407]

I found this in the Tioga River in Mansfield PA. My roommate said that it could be a net weight and I was wondering if anyone could give me a confirmation on what it is? (or isn't) Any help would be greatly appreciated! Thanks!

 

[southfork]

Hard to tell from photos maybe a water worn vug ? or fossil popped out .

 

[The Grim Reaper]

I agree with southfork. It looks to be natural to me.

 

[Charl]

Looks natural because it doesn't show biconical drilling, drilling from both sides to meet in the middle. Uneven denotes natural hole, not drilled.