What are some of the techniques used to authenticate and evaluate the condition and value of exonumia pieces, and how do these techniques differ from those used in traditional numismatics?

What are some of the techniques used to authenticate and evaluate the condition and value of exonumia pieces, and how do these techniques differ from those used in traditional numismatics?
Admin on March 28 2025 at 02:17 AM in Exonumia
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