Help Identifying A Chinese Bagua Charm - Modern Feng Shui Piece Or Older Cast Charm?

Hi everyone,

I'm hoping someone can help identify this Chinese Bagua (Eight Trigrams?) charm.

It has an octagonal shape and appears to be cast rather than stamped. It is non-magnetic and appears to be made of brass or bronze.

I don't know its history—it came from an old collection, so I have no provenance.

Size is approximately the same as a U.S. quarter (photos included for comparison). It appears to be about 3 mm thick.

I'm trying to determine:

* Is this a modern feng shui reproduction or an older Chinese charm?
* Does this design correspond to a known type or period?
* Is there anything about the casting, patina, or edge that helps date it?
* If authentic, what would be a reasonable value?

Any information would be greatly appreciated. Thanks!



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