How do materials and manufacturing techniques in exonumia differ from those used in producing regular currency, and what impact do these differences have on the preservation and value of exonumia items?

How do materials and manufacturing techniques in exonumia differ from those used in producing regular currency, and what impact do these differences have on the preservation and value of exonumia items?
Admin on April 25 2025 at 07:09 AM in Exonumia
0 Answer(s)
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