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<p>[QUOTE=&quot;Clawcoins, post: 3642176, member: 77814&quot;]there are so many variables that it varies ...</p><p><br /></p><p>The US in their ever attempts at findings cheaper methods to produce coins go through a treasure trough of test/information on coin production.</p><p><br /></p><p>The dies are hardened steel .. which of course SLAM against little pieces of new metal over and over again.</p><p><br /></p><p>They have reviewed alternative methods of production, such as:</p><p>[ATTACH=full]977825[/ATTACH]</p><p><br /></p><p>so they review processes</p><p>[ATTACH=full]977826[/ATTACH]</p><p><br /></p><p>[ATTACH=full]977827[/ATTACH]</p><p><br /></p><p>thus they track die and production processes.&nbsp; They also use various methods of lubrication ... grease (or other lubricate) dies.</p><p>[ATTACH=full]977828[/ATTACH]</p><p><br /></p><p>so you get coins that have simplified designs -- like those certain year nickels and the shield cents</p><p>[ATTACH=full]977830[/ATTACH]</p><p><br /></p><p>additional ...</p><p>[ATTACH=full]977832[/ATTACH]</p><p>and more ..</p><p>[ATTACH=full]977833[/ATTACH]</p><p><br /></p><p>and so on ....</p><p>[ATTACH=full]977834[/ATTACH]</p><p><br /></p><p>I could go on ... but that one document I just checked is 379 pages long.[/QUOTE]</p><p><br /></p>

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