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liltcent
02-04-2009, 07:33 AM
Hello,I found this pennie in a roll,unfortunatly it was the only interesting pennie in it, any way it looks like it has a dissease:tinysmile_hmm_t2:
what happen to this poor pennie?
lilt
trails
02-04-2009, 07:40 AM
It has a case of oxidizing zinc, which was caused by exposure to the air, which was caused by a gas bubble or bubbles, which was caused by the copper plating not bonding to the zinc core.

BJ Neff
liltcent
02-06-2009, 10:22 PM
thank you.
1sgret
02-07-2009, 05:03 AM
I would have to agree with BJ's description.