Hello! I hope this is the right forum. I found this at Goodwill with a very non-descriptive title of “Brass Wall Hanging". I've done a Google search and I think it's Korean, possibly old. I posted it a few places on Reddit but the only helpful comment was that they thought it was a Korean numismatic charm and at least 100 years old. Others said it was not old and a mass produced trivet or plate, but I can't find any kind of makers mark. It looks like it was originally meant to hang, not sit on a table to me though.
I'm hoping to find more information about this, like what it is, where it's from, and if it's worth finding an appraiser. I'm in North Georgia, USA so I've had trouble online finding any somewhat local appraisers who might know about Asian art, coins, or artifacts.
It's approximately 16x21cm (6x8 in), nonmagnetic, weighs 368g (13oz) according to my kitchen scale, and the edges are quite sharp. There are different markings on both sides. These are the best photos I could manage with my phone. Thank you for any information you can provide!
