1996 Lincoln Cent--Toning Or Clad Layering Issue?

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Author	Replies: 6 / Views: 1,125
ilikeikes Pillar of the Community United States 1205 Posts	Posted 12/19/2011 7:21 pm This 1996 Lincoln weighs in normal, at 2.52 grams, yet, shows a distinctly darker obverse than reverse...either end of roll toning, or, is there a possibility of a missing zinc layer with this one? My hunch is toning, if missing a layer of some sort, it should weigh much less. Opinions welcome. Thanks Report this Post to the Staff

pyrbob Rest in Peace United States 1943 Posts	Posted 12/19/2011 7:26 pm Looks like toning to me. The obverse must have been exposed but the reverse was protected. The coin might have been in a coin board that wasn't stored properly. Just a guess. Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 12/20/2011 07:52 am There is no zinc layer. It is a solid zinc core plated with copper. Your coin looks to be environmentally toned. John1 Report this Post to the Staff
coppercoins Pillar of the Community United States 7629 Posts	Posted 12/20/2011 08:27 am These coins are also not clad. They are copper plated. Clad is a method of placing sheets of different metals together and bonding them with extreme force. Plating is essentially dipping blanks of one metal into a molten bath of a different metal. Your coin is just damaged. Report this Post to the Staff
ilikeikes Pillar of the Community United States 1205 Posts	Posted 12/20/2011 11:46 am Thanks to all..back to the bone pile for this, and, now I know the difference between clad and plated coins. Report this Post to the Staff
rickmp Valued Member United States 64 Posts	Posted 12/20/2011 4:13 pm "Plating is essentially dipping blanks of one metal into a molten bath of a different metal. Plating is not dipping blanks into a molten bath. Electroplating is a plating process in which metal ions in a solution are moved by an electric field to coat an electrode. For more, see: http://en.wikipedia.org/wiki/Electroplating Report this Post to the Staff
clairhardesty Pillar of the Community United States 1027 Posts	Posted 12/21/2011 12:16 pm Electroplating can also deposit precise amounts of metal. By measuring the current and time (which together make energy), the amount of metal transferred can be very precisely determined and controlled. Report this Post to the Staff
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