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<p>[QUOTE=&quot;Conder101, post: 332829, member: 66&quot;]Dies are slightly convex.&nbsp; They come together in the center first and then as the dies come closer the metal flows OUTWARD radially from the center toward the edge.&nbsp; (Actually it isn&#039;t quite in the center because normally the center of the die has an incused design there, so it actually make contact around the edge of the central devices.&nbsp; Due to the upset rim of the planchet they may also make contact there but would not receive as much pressure there until later in the strike when the upset material is used to fill in the rim of the coin.)&nbsp; This is why weak strikes show weakness in the high points of the design and around the periphery and a weak edge.&nbsp; If the dies were concave all the metal flow would be toward the center, the areas around the edge would strike up first and the central devices last.&nbsp; Even weak strikes would show sharp details around the rim and most likely a strong edge.[/QUOTE]</p><p><br /></p>

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