Need help with identity of the green object.

[alabama11]

Hello all,
Found the patinated lead and the green object. Hoping someone who has seen a lot of relicts might know what it is. If it is a civil war relict then I got a new place to hunt by permission. Super. It came up with a 50 on the AT pro display. best,View attachment 1275739

 

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[civilman1]

Kind of looks like a piece of a barrel tap.

 

[alabama11]

Thank you for looking. I was thinking of water tube of some kind. So it could be the correct time period. Best,