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<p>[QUOTE=&quot;Conder101, post: 303924, member: 66&quot;]Horse power for the rolling mill, the screw presses were run by human muscle power to swing the lever arm of the screw.&nbsp; (Horse power for the presses may have been used in some European mints, but not at the US Mint.)</p><p><br /></p><p>And apparently the close collar actually was used long before 1836&nbsp; The early reeded edge silver and gold coins were not reeded by Castaining machine but by the collar.&nbsp; Lettered edge coins are frequently found with blundered edges and overlapped letters.&nbsp; There are no reeded edge coins with&nbsp; partial reeded edges or overlapped reeds.&nbsp; In those cases where an edge anomaly is known it repeats on the same variety and in the same relative position with respect to the obverse and reverse devices.&nbsp; This would not be the case if the planchets were reeded in a separate step.&nbsp; And finally off-center coins do not have reeded edges.&nbsp; If they had been reeded before striking they should have.&nbsp; This collar may not have been a tight fitting as the ones later used on the steam press, but it was close enough to impress its details on the struck coin.[/QUOTE]</p><p><br /></p>

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