Medieval Copper Ring?

[Vldetecting]

I was detecting in an old river that was 'drained' awhile ago in the middle of the forest, there is rumors of medieval places nearby. And I got a strong 50's signal, dug it up and got a quite old looking copper ring: (The scale is in Centimeters)
I just wonder how old this ring could be, I didn't find almost any information on the internet and my guess is 1600's to 1800's. It's a quite small ring too. So if you know anything please let me know.

 

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[Icewing]

This looks like a good place to do some research.

The Lost Museum

 

[bradyboy]

I see markings on the face and sides - X marking on each side?
BRady

 

[Blak bart]

Me too !!

 

[Vldetecting]

Yes, I know theres some markings and they look very hand-made.

 

[smokeythecat]

I have seen some of the 18th century rings, and technology was fairly advanced by then. I think your piece is fantastic and perhaps a LOT older. Good luck on the ID. Could even be as old as Viking.

 

[mk4125]

Most likely a bronze (or brass ring). Copper should ring up a bit higher on the Garrett ACE. Sweet find none-the-less!

 

[sutphin]

SWEET FIND