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<p>[QUOTE=&quot;TypeCoin971793, post: 4952960, member: 78244&quot;]The one flaw in this logic is that you assume that no additional damage happens to the planchet between being cut from the sheet and being struck. The planchets were carried in bags and trays; they contacted other planchets; etc. So there plenty of opportunities to gain new damage that to replace what was removed during the planchet preparation process. This is evidenced by the presence of a much rougher texture of the rim lip of a MAD strike than on the proper rim.</p><p><br /></p><p><br /></p><p><br /></p><p>When a coin is struck with normal dies (the image in the die is incuse), the metal flows AWAY from the edge of the planchet and into the voids left for the devices. Looking at the “star burst” pattern on LDS proof coins, you can see this in how the flowing metal etches the die. This flow of metal relieves the pressure at the rim, so that the metal at the rim is just the excess that was unable to flow towards the center of the coin.</p><p><br /></p><p>There is also the fact that the screw press had a much lower strike pressure than the steam press. In the capped bust series, there are areas that are almost never fully struck (with very few exceptions) on all 1807-1835 coins.[/QUOTE]</p><p><br /></p>

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