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<p>[QUOTE=&quot;The Eidolon, post: 6887728, member: 102103&quot;]Set #7:&nbsp; Some more Japanese 4 mon coins, this time the Shin Kan&#039;ei series.</p><p>Obverse:&nbsp; 寛永通寶 (Kan&#039;ei Tsuuhou)</p><p>Reverse:&nbsp; 11 wave patttern</p><p>Size:&nbsp; 28 mm&nbsp; Weight:&nbsp; 4.63, 4.72 g</p><p><br /></p><p>These coins were cast in several separate eras with near-identical characters, the Meiwa (1769-88), Bunsei (1821-25) and Ansei (1857-59) Eras.&nbsp; Hartill says the primary means of differentiating them is the color.&nbsp; The <a href="https://en.numista.com/catalogue/pieces162214.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.numista.com/catalogue/pieces162214.html" rel="nofollow">Meiwa</a> are a brassy color, the&nbsp; <a href="https://en.numista.com/catalogue/pieces156603.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.numista.com/catalogue/pieces156603.html" rel="nofollow">Bunsei</a> are a reddish copper, and the <a href="https://en.numista.com/catalogue/pieces162216.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.numista.com/catalogue/pieces162216.html" rel="nofollow">Ansei</a> are a darker copper color.&nbsp; There were also iron issues, with multiple provincial variants.&nbsp; I don&#039;t have a way to compare the colors precisely, but to my eye, they look closest to the Meiwa series in color.&nbsp; The weight is also a little closer to Meiwa (listed as 5 g) than Ansei (4.34 g).&nbsp; I don&#039;t know that the weight tolerances were very precise on these anyway.&nbsp; All of the three main series are fairly common.&nbsp; My guess for these two is Hartill 4.252.</p><p>[ATTACH=full]1272791[/ATTACH][ATTACH=full]1272792[/ATTACH][/QUOTE]</p><p><br /></p>

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