Another "what is it?"...

[Teamroper]

It's about 2 inches long and about 1 inch wide. I thought I remember seeing these on some kind of belt with green webbing attached to it when I was a kid, but I could be wrong. Thanks for any information ahead of time.

 

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[parsonwalker]

Let's try this again -

While it's a very unusual shape, it has the right construction to be a horse bridle rosette . . .

 

[Back-of-the-boat]

Yeah belt buckle like the one you remembered.