The first of these errors I found roll searching, it looks like some kind of capped die with only a vague impression of Lincoln but a large bump in the middle of the obverse, reverse appears fine. The second coin I found going through some change that my parents had laying around. It looks like it is missing the clad layer, so I wanted to know if it was removed post mint or not. If you think these are real errors I would appreciate any comments on value and what to do with them as well as my photography since I am still trying to get that down. Thanks, Wiggam "Wiggaman" 007
Why do you think the first one might be missing the clad? It looks more like copper oxidation than zinc oxidation. Appears at first glance to be a normal oxidized Cu/Zn cent ( even if it is rather dark). Jim
I thought that it might be missing the copper layer as I didn't see any copper anywhere showing through. I am no chem expert so I have no idea what the difference is between copper and zinc oxidation. Looking at the coin again, it has quite a few raised bumps over the surface. I seem to recall someone mentioning on coins that had acid used on them to remove the outer layer would produce "bubbles." Would this be what they were refering to?
The first coin had the Copper Plating removed Post-Mint with some type of acid then the Zinc suffered from being exposed to environmental contaminants. The giveaway that the Copper Plating was removed, are the rims and the high spots on the Reverse that show Zinc instead of Copper. The rough...bumpy surfaces futher indicate the use of some type of acid. Also, the Zinc Cores of the Cents do not fair well to environmental contaminants and darken fairly quickly once exposed. I agree with TheNoost on the second coin! It is Post-Mint damage from a use of Metal Lathe. Frank
