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<p>[QUOTE=&quot;alurid, post: 2549128, member: 81991&quot;]Presure from the inside to the outside will make metal larger. Is not that why collars are used in the die stamping process to retain the corect size of a coin? If you apply </p><p>presure to the outside rim or edge of it will not squeeze it a make it smaller or even buckle and bend with enough presure?[/QUOTE]</p><p><br /></p>

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