Concho, Brooch, or ??

[Swartzie]

This kind of looks like a concho to me, but would like some opinions. It is copper and the back is iron like. By the design what time period do you think. 18th or 19th C?

-Swartzie

 

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[Viminacium]

Could be belt brooch...

 

[chrisplay2004]

The size and design remind me of a Bridle Rosette, but that iron like back is throwing me off.

 

[duggap]

I like you idea of bridal rosette. After the civilwar the military were using us rosettes with iron backs. I have found them.