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<p>[QUOTE=&quot;Burton Strauss III, post: 2138508, member: 59677&quot;]I realize the obvious - it&#039;s an 1852 3 cent silver encased in a bronze ring. But beyond that?</p><p><br /></p><p><img src="http://i1289.photobucket.com/albums/b519/BStrauss3/Encased%203cs/Coin2015.X4-obv-0427-crop-dual-small_zpsefrbvsy6.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p><br /></p><p><br /></p><p>I understand most encased coins are advertising and usually in Aluminium. From the weight it has to be a low lead (9 or 10%) bronze. And it&#039;s absolutely plain...</p><p>&nbsp;</p><p>Diameter&nbsp; 25.3mm</p><p>Thickness&nbsp; 2.6mm</p><p>Weight 8.164g</p><p>less&nbsp; 0.750g coin</p><p>gives&nbsp; 7.414g approx ring weight</p><p><br /></p><p>I found two online calculators:</p><p><a href="http://www.calculatoredge.com/matweight/material%20wt.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.calculatoredge.com/matweight/material%20wt.htm" rel="nofollow">http://www.calculatoredge.com/matweight/material wt.htm</a></p><p><a href="http://www.matweb.com/tools/weightcalculator.aspx" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.matweb.com/tools/weightcalculator.aspx" rel="nofollow">http://www.matweb.com/tools/weightcalculator.aspx</a></p><p>Matweb allowed me to specify the density of the metal and this page <a href="http://www.engineeringtoolbox.com/metal-alloys-densities-d_50.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.engineeringtoolbox.com/metal-alloys-densities-d_50.html" rel="nofollow">http://www.engineeringtoolbox.com/metal-alloys-densities-d_50.html</a> suggested a low lead bronze, using density 8200 kg/m3 calculates out pretty close: a ring weight of 7.4361g.</p><p><br /></p><p>But who did it, when and why?</p><p><br /></p><p>The history of encased postage stamps is pretty well documented, but encased coins seems less clear...</p><p><br /></p><p>The hole has me thinking it was a pendant?</p><p><br /></p><p>TIA[/QUOTE]</p><p><br /></p>

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