Not sure of the answer, but I do note that the below linked thread covered many of these designs. If your isn't listed, then try to reach out via dm to @happyhippo.
Additionally, most private mints make a version of the classic coin. It is the most common Round design. If it doesn't have the mint name, good luck trying to figure it out. The good part is that it says 1 oz. and .999 fine. If you concerned with its content, try a magnet, weigh it, and try a pocket pinger. I'll include a link: https://www.amazon.com/dp/B099RHVCF...duct_details
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