🔎 UNIDENTIFIED Any ideas on what this could be?

[Ace 350]

This is super light , I can’t make out any marking but I do see some letters I believe or think that they are letters. But either way , anyone have any ideas on this? Found in a field , that had old farm use , some civil war foot traffic , and a bunch of bud light cans and newer targets. Thoughts?

 

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[Sandog]

?

 

[BoulderTroll]

How thick is it? Same as the penny?

 

[ticndig]

wine bottle lid wrapper ? I've dug something like that with a wine label on them.

 

[DCMatt]