Message:

<p>[QUOTE=&quot;foundinrolls, post: 698322, member: 4350&quot;]Grease on the surface of a die has hydraulic properties under high pressure.&nbsp; The grease acts like a solid when the coin is struck and if the spot effects the field, as it does in this case, there will be a small depression left behind after the strike.[/QUOTE]</p><p><br /></p>

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