Field find...please ID this relic

[mope540]

Found this iron relic yesterday while field hunting where a home once stood. It was partially exposed, otherwise i would not have dug for it when i got the big null signal. Looks like it took a number of hits from the plow over the years. What is it??
This home site is marked on the 1874 atlas. Not much else was found..unfortunately i was limited on coil sweep because of the foot tall corn stalks...i'll be back.

 

[tamrock]

I believe it's the grinding part of an old coffee grinder. Not sure what that part would be named ??

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http://www.oldcoffeegrinders.com/images/Cleaning Before and After.jpg

 

[mope540]

Amazing!!!!!!! Thanks!