Unusual Alloy Mix Lincoln Cent - Coin Community Forum

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Author	Replies: 19 / Views: 1,790	Page: of 2
DmanofLV Valued Member United States 98 Posts	Posted 01/03/2017 4:32 pm I obtained this coin in the middle of a 1955-S/S roll. Two of them have reverses that seem to be copper and mixed brass. Does anyone have an error designation number on these coins? Report this Post to the Staff

John1 Moderator United States 56855 Posts	Posted 01/03/2017 4:50 pm It looks to be an issue of toning and not an alloy issue. John 1 Report this Post to the Staff
moxking Rest in Peace United States 17900 Posts	Posted 01/03/2017 6:09 pm Its not uncommon to find that coloration in rolls. It is toning rather than alloy mix. Edited by moxking 01/03/2017 6:10 pm Report this Post to the Staff
DmanofLV Valued Member United States 98 Posts	Posted 01/03/2017 7:00 pm No it is not toning. I rubbed the other coin that has less of the brass/green and the color does not change. The color is positively coming from the alloy. Report this Post to the Staff
Buddy Rest in Peace United States 7075 Posts	Posted 01/03/2017 7:46 pm I don't know why you think that rubbing the coin would remove toning. The metal has changed color. It happens due to being exposed to the environment. New copper starts out red and hardly ever stays that way for very long. Report this Post to the Staff
oldmike Pillar of the Community Canada 891 Posts	Posted 01/03/2017 7:57 pm Those pennies are 95% copper, they don't contain enough zinc to make it brass. Report this Post to the Staff
Dustin6 Pillar of the Community United States 3516 Posts	Posted 01/04/2017 12:31 am with buddy, rubbing a coin doesn't remove anything, except for eye appeal. Not sure why you did that. Its just toning Report this Post to the Staff
Conder101 Bedrock of the Community United States 17884 Posts	Posted 01/04/2017 1:31 pm Quote: I don't know why you think that rubbing the coin would remove toning. The metal has changed color. Toning is not the metal changing color, it is the result of oxides, sulfides or other coatings that form on the surface of the metal. Rubbing may not change the color at first but eventually you will wear through that layer and the color will change. Report this Post to the Staff
T-BOP Rest in Peace United States 18456 Posts	Posted 01/04/2017 1:54 pm I don't think this is an alloy issue . Look at the reverse ,half the coin is red, the other half is green, if it was an alloy mixture the whole coin would have the ''woodie effect'' which this coin does not show . My gut says toning possibly from environment . But none the less ; TONING . Report this Post to the Staff
DmanofLV Valued Member United States 98 Posts	Posted 01/04/2017 4:55 pm Does anyone have a photo or reference of a Lincoln Cent that has the same brass/green and copper tone as this coin? Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 01/04/2017 5:06 pm I do not have any photos handy but I have seen several mid-50s wheaties with similar greenish-yellow toning. Report this Post to the Staff
Slamnbass Pillar of the Community United States 3644 Posts	Posted 01/04/2017 5:12 pm and I've seen a good number of them also Report this Post to the Staff
DmanofLV Valued Member United States 98 Posts	Posted 01/04/2017 5:35 pm I have collected 45 years and have not seen any lincoln cents "toned" even similar to this. Maybe someone has a reference. As far as woodies are concerned, here is photo of a 1918 woodie from my collection. Report this Post to the Staff
trout1105 Pillar of the Community Australia 7096 Posts	Posted 01/04/2017 5:39 pm Many copper coins tone this way in rolls. I have seen many Australian penny's like this and personally I think they look great. Report this Post to the Staff
Slamnbass Pillar of the Community United States 3644 Posts	Posted 01/04/2017 5:46 pm Nice woodie! Report this Post to the Staff
DmanofLV Valued Member United States 98 Posts	Posted 01/04/2017 5:58 pm Here are photos of the other coin and also a better photo of the coin that has the larger green/brass/copper "tone" The first photo shows the color in bar type streaks. This a characteristic of an alloy coin or most woodies. Report this Post to the Staff
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