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<p>[QUOTE=&quot;CohibaCris, post: 11921, member: 904&quot;]It goes uphill from here, boys and girls:</p><p><br /></p><p>Regarding clad metals:</p><p><br /></p><p>1.&nbsp; What mix of metals make up our modern clad coinage?&nbsp; (Percentages for extra credit!)</p><p><br /></p><p>2.&nbsp; There are layers of different metals formed together for the clad sandwich.&nbsp; How many are there, typically?</p><p><br /></p><p>3.&nbsp; How are the layers united to create the coin strip ready for planchet punching?</p><p><br /></p><p>4.&nbsp; What temperature is typically used to make question 3 possible?</p><ul> <li>200-400 degrees F</li> <li>400-800 degrees F</li> <li>1000-1500 degrees F</li> <li>1000-1500 degrees C</li> </ul><p><br /></p><p>And just for giggles:</p><p>Name a company that supplies coin metal to the US Mint?[/QUOTE]</p><p><br /></p>

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