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<p>[QUOTE=&quot;iPen, post: 2332777, member: 69760&quot;]Are they simply two separate discs of different diameters which are &quot;fused&quot; together?</p><p><br /></p><p>Or, is one of the layers essentially a thick clad layer?</p><p><br /></p><p>If it&#039;s simply &quot;fused&quot; together as two separate discs that aren&#039;t overlapping, then is it possible to push the center out and end up with two separate metals?</p><p><br /></p><p>I only have one in my collection and I don&#039;t want to poke the polar bear to find out... (it&#039;s a $2 Canada polar bear Sterling-Cu bimetallic, same as the one pictured below).</p><p><br /></p><p>Thanks in advance!</p><p><br /></p><p><img src="http://static-numista.com/catalogue/photos/canada/g2328.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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