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<p>[QUOTE=&quot;GDJMSP, post: 18322, member: 112&quot;]Quite simple actually - the upset mill is the process whereby a blank coin planchet receives its rim prior to the coin being struck. In effect a planchet - a smooth round piece of metal - goes into a machine that pushes rollers up against the edge with pressure. The pressure pushes the edge inwards and forms the raised rim. Then the planchet goes into the coin press where it is actually struck and turned into a coin.</p><p><br /></p><p>As for incuse - there are two ways a coin be struck. The devices of the coin will either be in relief - or raised on the surface of the coin - or they will be incuse - or lowered into the surface of the coin. The vast majority of coins are struck in relief. Very few have ever been struck with incuse devices.[/QUOTE]</p><p><br /></p>

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