Any Help would be awesome!!!

[AlabamaAdventure54]

I found this piece today along the Patuxent River on the southern peninsula. This spot has a lot of History. War of 1812 came ashore here and an old manor called Susquehanna was on site not far.
The piece is all stone. Agate. No holes and the sides are smooth. I’m stumped!! 😳❤️

 

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[vpnavy]

I found this piece today...I’m stumped!!

I moved ya from HELP! over to WHAT IS IT? for more exposure.

NOTE: Forum HELP! contains guides tutorials on how to use the new TreasureNet.com software.

 

[Blackfoot58]

Welcome to T Net.
I’m a little confused. The outer rim looks metallic and I don’t see anything that looks like agate.
Definitely an interesting piece.

 

[AU Seeker]

Hard to tell the exact size and shape, please post a side/edge view!

 

[FinderTravis]

Found something similar looking a few years back and believe it was a single cell from a carbon based battery.