Button ID help needed:confused:

[CELLARHOLERAT]

Went out relic hunting to an old cellar hole, and found this one piece button. It looks to be colonial military but don't know what type. I looked through Alberts button book but no matches were found. As you can see in the photos below. It's the size of a quarter and looks to be silver guilted. In the center of the belt that goes around it as you can see in photo it has 2 eagles on it. One of side view standing on a stick, and above it an eagle with its wings spread out like you would see on an old coin. Any help identifying it would be appreciated.
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Thanks for any help,
CELLARHOLERAT

 

[John - Maryland]

n/t