Carbine sling buckle Sash buckle or Shoe buckle?

[Gregg3131]

Found this beautiful buckle next to a Union officer Sword belt plate which I will post later. It's 3 inches by 2 inches. I had thought it was a shoe buckle but thought maybe Civil War related. Any experts out there?

 

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[Silvermonkey]

I'm no expert, but thats a lovely find. Congratulations.

 

[Gregg3131]

Thanks. Hoping someone on here can ID it.

 

[parsonwalker]

Looking forward to seeing that plate Gregg!

 

[CRUSADER]

Late 19th C, might be a sash buckle.

 

[Steve in PA]

I would lean toward sash buckle. Definitely not a shoe buckle and I have never seen a carbine sling buckle with scalloped edges.