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<p>[QUOTE=&quot;desertgem, post: 3312024, member: 15199&quot;]IMO, notches can be indicative of true DD, but I have found enough where I could see notches with magnification , but the rest of the image showed MD. I go with the most convincing factor.&nbsp; As I tried to visual it with the drawing of what die doubling looked like, and with the premise that each hubbing pressure and annealing procedure were supposedly the same, the Doubled die coin&nbsp; ( the 72 or 55 lincoln&nbsp; as examples) should be the same height and have greater width due to the overlap . If the die was loose&nbsp; in the holder or misaligned, even though the hubbing was correctly done , the movement of the die upon striking the metal and/or the up motion from the strike of the die , could move the edges of the image. That contact during such movement would cause chattering or smearing of the edges.&nbsp; I do not know of a DD that has notches that one side of it&nbsp; is normal height and the other flattened. Maybe some one could hypothesize that the person doing the hubbing didn&#039;t complete the full depression of the die, but I feel that is less likely . I would like also any input from people who have thought about this more. Thank you for bringing up the subject. Jim</p><p><br /></p><p>p.s. All based on multistrike hubbing, not current single hubbing.[/QUOTE]</p><p><br /></p>

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