1990 And 2000 Pits ? - Coin Community Forum

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Author	Replies: 4 / Views: 845
bonham3 Valued Member United States 346 Posts	Posted 10/05/2007 4:00 pm Hello Figure I would post two at the same time. The 2000 shows for itself. The 90 has a few more raised areas on the lettering (not shown) Never saw s many in one area before. Image: 20002.jpg 32.47 KB Image: 1990.jpg 8.38 KB Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 10/05/2007 8:20 pm The 1982-2007 Cents have a zinc core with copper plating on them. When the coin is struck some areas expose the zinc causing it to react with the air. This happens on the obverse usually around the mint mark and outer edge of the motto. On the reverse it happens to the UNITED STATES area. After the zinc starts reacting to the air, it may do one of two things. Swell or expose a hole. I've seen coins that the mint mark had raised, fallen and fallen off the coin because all that was holding it was the plating. Edited by coop 10/05/2007 8:22 pm Report this Post to the Staff
bonham3 Valued Member United States 346 Posts	Posted 10/06/2007 5:23 pm I see. That goes hand in hand with the so called lam. error coins I posted earlier. I know, not an error :) Now I see two types of the problem. A bubble in the lam. and also a split or crack. Just for fun I am going to try and pop those high spots just to see if it is in the lam. or the zinc. I'll let you know what happens. Report this Post to the Staff
bonham3 Valued Member United States 346 Posts	Posted 10/06/2007 5:27 pm Coop By the way, that 1983 pic. you posted is actually a very rare "Orleans" mint mark. :):):) Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 10/06/2007 7:14 pm LOL I've found two from the same year and "O" mint mark. I had to check them close to see if they were from the same die. They weren't. Doesn't seem like a lamination error would as possible on a plated Cent. Seems like it would be more likely to be debris. On the copper planchets the copper cracked/split off the planchet. Interesting, but I set them aside for a certain collector I know. someday I will send them to him. They usually don't look too pretty. Report this Post to the Staff
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