In very good condition and with a nice patina. Items like this often adorned a leather cross belt. I have no idea if this was used by royal house, local militia, religious society, fraternal organization or Ducal livery item. The crown is a Duke's crown in pattern.  Item measures approx 2 1/8th inches in diameter and is about 3/8ths of an inch thick. It has a link on one end to attach a chain or decoration.  Weighs 2.2 ounces on my postage scale.
 
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