✅ SOLVED Help me with this thing!?

[NickSwingLOW]

Does anyone recognize this? I believe it’s brass. Stamped with initials maybe a “J.M.”
And there is and 8 with a smaller zero next to it with an underscore. My initial though was some sort of bag seal but for sure this is not lead.

 

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[NOLA_Ken]

it's a keyhole cover, from an old padlock or a fancy door

 

[NickSwingLOW]

it's a keyhole cover, from an old padlock or a fancy door

Thank you! Definitely Civil War era padlock cover.