1971 1cent Plating Error Or PMD? - Coin Community Forum

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Author	Replies: 7 / Views: 2,021
RoyalSilver Pillar of the Community Canada 933 Posts	Posted 10/23/2012 01:03 am Found this 1971 penny, with what looks like a plating error, because of the piece at the top. However, I'm thinking this can also be PMD? Report this Post to the Staff

mdpmedia Pillar of the Community United States 3546 Posts	Posted 10/23/2012 01:51 am Hello, Firstly, being that this type of Canadian penny is 'normally' composed of 98% copper, 0.5% tin, and 1.5% zinc would you be able to indicate with a high degree of certainty if the light colored metal remaining with the coin is either tin or zinc? Secondly, the last photo on this thread displays some of this lighter colored metal under the 'c' of cent; this patch of metal also appears to be 'sitting' above the copper. Could you attempt to dislodge this piece of metal using a rigid pointed object? Then if it comes off of the coin I would have a lab verify its metal composition, confirming any zinc or tin content. If it come back having a composition other that Zn(zinc) or Sn(tin), it has to be PMD... mdpmedia Report this Post to the Staff
SPP-Ottawa Moderator Canada 10463 Posts	Posted 10/23/2012 01:56 am I suspect PMD, looks like someone was playing with tin-lead solder. "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
John1 Moderator United States 56855 Posts	Posted 10/23/2012 04:58 am Looks like a piece of tin foil is stuck to it. John1 Report this Post to the Staff
CanadianCollector Valued Member Canada 306 Posts	Posted 10/23/2012 10:16 am It looks like solder to me too Report this Post to the Staff
RoyalSilver Pillar of the Community Canada 933 Posts	Posted 10/23/2012 3:25 pm thanks guys, tossing this one back in to circulation on second thought, going to my melt bucket lol Edited by RoyalSilver 10/23/2012 3:28 pm Report this Post to the Staff
wert Rest in Peace 1988 Posts	Posted 10/23/2012 9:19 pm SPP is right...It is definitely solder splash..See how it is raised above the surface of your coin. Report this Post to the Staff
RoyalSilver Pillar of the Community Canada 933 Posts	Posted 10/23/2012 10:49 pm yeah I could see the raised part with the loup too, which is what made me think PMD. I wish it wasnt haha Report this Post to the Staff
	Replies: 7 / Views: 2,021

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