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<p>[QUOTE="BR549, post: 974574, member: 7110"]I had a Great Aunt with gnarly arthritic fingers and when she'd want to pinch you, she'd sometimes grab to much skin and it would not hurt, but man when she grabbed just a bit of skin, good Lord that hurt. Same principle of area vs pressure, like that a woman's high heel. When weight (pressure being added-force) is placed onto the shoe, the spike of the heel can dent linoleum, but the shoe part will not because the load is spread over a larger area. The same principle can be applied to a coin that is only partially struck. The same force is applied to a much smaller area, creating more distortion in the object being struck.</p><p><br /></p><p>Die set up (stand-off) trial strike, incomplete struck planchet. Note the marks in the unstuck area of the obverse, these marks were there prior to striking and prior to being released from the mint facility.</p><p><br /></p><p><img src="http://i113.photobucket.com/albums/n230/woodyoneII/diesetup.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="http://i113.photobucket.com/albums/n230/woodyoneII/diesetupreverse.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="BR549, post: 974574, member: 7110"]I had a Great Aunt with gnarly arthritic fingers and when she'd want to pinch you, she'd sometimes grab to much skin and it would not hurt, but man when she grabbed just a bit of skin, good Lord that hurt. Same principle of area vs pressure, like that a woman's high heel. When weight (pressure being added-force) is placed onto the shoe, the spike of the heel can dent linoleum, but the shoe part will not because the load is spread over a larger area. The same principle can be applied to a coin that is only partially struck. The same force is applied to a much smaller area, creating more distortion in the object being struck. Die set up (stand-off) trial strike, incomplete struck planchet. Note the marks in the unstuck area of the obverse, these marks were there prior to striking and prior to being released from the mint facility. [IMG]http://i113.photobucket.com/albums/n230/woodyoneII/diesetup.jpg[/IMG][IMG]http://i113.photobucket.com/albums/n230/woodyoneII/diesetupreverse.jpg[/IMG][/QUOTE]
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