An interesting Lincoln...

NewMackMatist · October 1, 2007 12:25PM

Found this beauty while I was searching my old Lincoln Memmorials that have been sitting around collecting dust. Looks like old Abe's got a bad case of acne. Anybody know what kind of error is this considered?? I've never seen it before, is it common??

Anyhow, thanks for looking.
-Mack

coinkid855 · October 1, 2007 12:26PM

I'm thinking acid. But I could be wrong.

JRocco · October 1, 2007 12:29PM

Just bubbling in the plating. Very very common.

NewMackMatist · October 1, 2007 12:32PM

Got it thanks!! It's got character and I like it.

-Mack

coinkid855 · October 1, 2007 12:35PM

<< <i>Just bubbling in the plating. Very very common.

>>

I've never seen one...well, you learn something new every day!

fcloud · October 1, 2007 12:37PM

gas bubbles stuck between the different metal. They look cool, but no extra vaule.

DieClash · October 1, 2007 12:50PM

"The first copper-plated zinc cents were struck on planchets with a pure zinc core and plated with pure copper. However, the zinc quickly oxidized before the blanks were plated with the copper, resulting in poor bonding between the core and the plating (manifesting itself as bubbles in the plating). To fix the problem, the Mint added a small amount of copper to the zinc core in 1984; doing so improved the bond between the core and the plating."

Link to original CW article

oxy8890 · October 2, 2007 3:18AM

<< <i>"The first copper-plated zinc cents were struck on planchets with a pure zinc core and plated with pure copper. However, the zinc quickly oxidized before the blanks were plated with the copper, resulting in poor bonding between the core and the plating (manifesting itself as bubbles in the plating). To fix the problem, the Mint added a small amount of copper to the zinc core in 1984; doing so improved the bond between the core and the plating."

Link to original CW article >>

Dieclash,

Thank you for a more technical explaination. Great Info.

cmerlo1 · October 2, 2007 3:28AM

I have a 1983-S poof that has bubbling like that...it looks like the mint had trouble with the plating process back then, because I don't see it very often on the newer coins...