5¢ 2016 Hem On Edge Observe Side - Page 2

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Author	Replies: 19 / Views: 3,120	Page: of 2

mikediamond Pillar of the Community United States 2738 Posts	Posted 02/26/2017 2:06 pm It doesn't look like a partial collar. Part of it seems to show the contours of a groove. Among US coins, "groovy" nickels and quarters are known, although the mechanism is unknown. Also unclear is when it occurs (it could be post-strike damage). Arnie Margolis suggested it's caused by a worn groove in the upset mill. I have my doubts. Wish I could be more helpful. Error coin writer and researcher. Report this Post to the Staff
SPP-Ottawa Moderator Canada 10460 Posts	Posted 02/26/2017 2:41 pm What if never went through the upset mill Mike? I have 1c coins that look just like this, and were struck on Type I planchets. "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US My eBay store Report this Post to the Staff
mikediamond Pillar of the Community United States 2738 Posts	Posted 02/26/2017 4:57 pm Are you sure they were struck on blanks (T1 planchets)? It can be hard to tell when a coin is fully struck. I have personally never seen a coin struck on a blank which presents with this sort of edge. If struck in-collar, I look for remnants of the cut-and-tear texture along with an unusually wide edge (vertically, that is), and a poorly formed design rim. I see none of these diagnostics in the lead-off coin. Error coin writer and researcher. Report this Post to the Staff
castor Valued Member Canada 306 Posts	Posted 02/27/2017 11:37 am Quote: Mrs Diamond wrote: It doesn't look like a partial collar. Part of it seems to show the contours of a groove. Among US coins, "groovy" nickels and quarters are known, although the mechanism is unknown. Also unclear is when it occurs (it could be post-strike damage). Arnie Margolis suggested it's caused by a worn groove in the upset mill. I have my doubts. Wish I could be more helpful. Thank you Mrs Diamond for answering my request. And I understand very well that this defect is not easy to define. Report this Post to the Staff
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