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Some non-Qing Dynasty copper cash (China/Japan/Vietnam etc.)
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<p>[QUOTE="The Eidolon, post: 7350168, member: 102103"]This one is a bit of a puzzle to me. </p><p>I believe it is Vietnamese, Lê Dynasty, Canh Hung Thong Bao=景興寶通, 1740-87</p><p>Diameter is ~22 mm, weight is only 1.53 g</p><p>Most of the copper cash of Canh Hung should be about 3-4 g, 24 mm.</p><p>He issued a lot of coins, so I doubt it's a fake. </p><p>Maybe a contemporary unauthorized underweight issue.</p><p>There was also a <a href="https://en.numista.com/catalogue/pieces64870.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.numista.com/catalogue/pieces64870.html" rel="nofollow">tin issue</a> of similar size, but no weight listed.</p><p>I'm not familiar with the appearance of tin alloys after 200+ years, but tin a bit less dense than copper, so it might be a possibility. This one doesn't have a lot of the greenish corrosion typical of older copper coins. I assume the tin coins are some sort of alloy mix anyway, so a density measurement wouldn't tell me much.</p><p>Any suggestions? Normal issue, tin, contemporary counterfeit, or smaller denomination? Advice and commentary welcomed as always!</p><p>[ATTACH=full]1281979[/ATTACH] [ATTACH=full]1281980[/ATTACH][/QUOTE]</p><p><br /></p>
[QUOTE="The Eidolon, post: 7350168, member: 102103"]This one is a bit of a puzzle to me. I believe it is Vietnamese, Lê Dynasty, Canh Hung Thong Bao=景興寶通, 1740-87 Diameter is ~22 mm, weight is only 1.53 g Most of the copper cash of Canh Hung should be about 3-4 g, 24 mm. He issued a lot of coins, so I doubt it's a fake. Maybe a contemporary unauthorized underweight issue. There was also a [URL='https://en.numista.com/catalogue/pieces64870.html']tin issue[/URL] of similar size, but no weight listed. I'm not familiar with the appearance of tin alloys after 200+ years, but tin a bit less dense than copper, so it might be a possibility. This one doesn't have a lot of the greenish corrosion typical of older copper coins. I assume the tin coins are some sort of alloy mix anyway, so a density measurement wouldn't tell me much. Any suggestions? Normal issue, tin, contemporary counterfeit, or smaller denomination? Advice and commentary welcomed as always! [ATTACH=full]1281979[/ATTACH] [ATTACH=full]1281980[/ATTACH][/QUOTE]
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Some non-Qing Dynasty copper cash (China/Japan/Vietnam etc.)
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