Blacksmith tag?

[Goondock]

Found this at a late 1800s early 1900s site. It's tiny. Fits on the end of my index finger. I dinged it with my shovel. It looks like it says A. Brooker on top and Union Grove on the bottom. Pictures of an arm hoping a hammer, anvil and horseshoe. Thanks for looking!

 

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[etex]

Nice find, unusual