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<p>[QUOTE=&quot;mikediamond, post: 139145, member: 1859&quot;]Generally, rotated die errors are measured in degrees of deviation from perfect coin rotation.&nbsp; By convention, reverse rotation is measured relative to the obverse, which is considered fixed for this purpose.&nbsp; Degrees of rotation are measured&nbsp; clockwise (CW) or counterclockwise (CCW) relative to a vertical axis defined by perfect coin rotation relative to the obverse face.&nbsp; So, for example, you can have a 90 degree CW rotation or a 90 degree CCW rotation.&nbsp; No rotation can be greater than 180 degrees.&nbsp; The greater the rotation, the greater the value, with 180 degrees being the most desirable.&nbsp; Rotations of less than 40 degrees carry little value.[/QUOTE]</p><p><br /></p>

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