ID help please.

[ChrisNJ]

Hi everyone, always wanted to find arrowheads but coin shooting always takes precedence. Today detecting along the Delaware near Trenton I spied these, any chance of Native American origin? Looks like a handheld grinding bowl and a piece of some kind of pottery.
Thanks

 

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[GatorBoy]

I can tell you the pottery is not native American. Good job keeping your eyes peeled while detecting though.

 

[rock]

Looks like a little stone bowl. Clean the inside section so we can get a better view on it.