A symetrical polished stone with mark

[Rio Del Norte]

Neighbor is getting ready to plant field next door. Perfect chance to hunt. My lucky day. Finest I've ever found...softball size.

[tomf]

That's awesome. I have one quite similar. I wonder what they were?

[Rio Del Norte]

It's a mystery to me too, but at 6# it's a significant piece...

[Fla.Hillbilly]

some sort of game ball Id say. IMO which aint much.

[ApacheNDN]

That's pretty cool. If it were smaller I would say stone for a hide wrapped war club. That big though, maybe round grinder??

[Cecilia]

If that lil missing chunk can be thot of as divot, possibly a big bola stone? Ones here have dimples to accommodate knot from sling. Mine can sit on their divots, not roll around, and that’s how I figure what job had. Looks like this one can do same. I imagine with momentum that would be perfect, deadly fast ball!