Coin Community Family of Web Sites
Like us on Facebook! Subscribe to our Youtube Channel! Check out our Twitter! Check out our Pinterest!
Username:
Password:
Save Password
Forgot your Password?

Welcome Guest! Need help? Got a question? Inherit some coins?
Our coin forum is completely free! Register Now!

1999 Lincoln Penny, Plain Zinc, No Copper Layer? Very Smooth.

 
 
To participate in the forum you must log in or register.
Author Previous Topic Topic Next Topic  
Valued Member
United States
387 Posts
 Posted 05/25/2018  3:36 pm Show Profile   Bookmark this topic Add cldague to your friends list Get a Link to this Message
Found this today roll hunting, it is real smooth and dusty gray in color.




Bedrock of the Community
United States
28488 Posts
 Posted 05/25/2018  3:38 pm  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Looks like environmental damage not an error.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
Valued Member
United States
387 Posts
 Posted 05/25/2018  3:47 pm  Show Profile   Bookmark this reply Add cldague to your friends list Get a Link to this Reply
Okay, Thank you!
Valued Member
United States
274 Posts
 Posted 05/25/2018  4:25 pm  Show Profile   Bookmark this reply Add NewMember to your friends list Get a Link to this Reply
I found a similar one a couple weeks ago. I did some homework on it and apparently it's not difficult to remove the copper, I think, with a sulfur base(?). Neat science project. Just to echo Johns statement, probably nothing more than oxidation/environmental damage.
Bedrock of the Community
Learn More...
United States
23054 Posts
 Posted 05/25/2018  4:29 pm  Show Profile   Check Errers and Varietys's eBay Listings Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
Environment Damage with Zinc Rot from the Zinc core getting exposed.
More information about Die Deterioration? http://goccf.com/t/317950
Retired U.S. Mint Coin Die Set information. http://goccf.com/t/302961
1973 D Lincoln Memorial cent With Recurring Die Subsidence Error Information. http://goccf.com/t/304624
Machine Doubling tutorial. http://goccf.com/t/332421
Die states progression on coins. Scroll down, so you can see the different die state progressions. http://goccf.com/t/325638
Die Deterioration Doubling Tutorial. http://goccf.com/t/336470
Valued Member
United States
208 Posts
 Posted 05/25/2018  5:17 pm  Show Profile   Bookmark this reply Add Giwalsh to your friends list Get a Link to this Reply
U sure it's a 99 and not a 90?because that looks like a wide AM
Pillar of the Community
United States
2233 Posts
 Posted 05/25/2018  5:22 pm  Show Profile   Check Tanman2001's eBay Listings Bookmark this reply Add Tanman2001 to your friends list Get a Link to this Reply

Quote:
looks like a wide AM

No it's a close AM.

I agree that it's environmental damage.
Valued Member
United States
274 Posts
 Posted 05/25/2018  5:38 pm  Show Profile   Bookmark this reply Add NewMember to your friends list Get a Link to this Reply
Hey cldague, you should clean it real good and keep it. Generally I don't promote cleaning but if it's worth a cent, no harm. I only say that because mine cleaned up really well, it was solid black. People don't mind looking at it, especially the ones that are still under the impression that our pennies are still made of copper.
Bedrock of the Community
Learn More...
United States
38738 Posts
 Posted 05/26/2018  01:53 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
This looks like an addiction of zinc to the coin? Why do I think that? Note the two bubbles above the dat area. How could those get under the zinc? It couldn't. But they can appear under plating. So zinc was added to the coin.
Richard S. Cooper
Some have asked about my images I use and I'm glad to say, you can now you can see the DVD in sections on youtube:
1. Intro, older coins, toned coins 2. Doubled dies 3. Die events, One of a kind errors 4. So called errors, Coin information 5. Coin information Types and Varieties, Overlays
Jefferson nickel doubled dies Wexler/Rebar complete listings

trail dies:http://www.traildies.com/
Bedrock of the Community
Australia
15635 Posts
 Posted 05/26/2018  02:57 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
The obvious inference from coop's comment is zinc plating over the copper plating. The picture suggests that, around the rims.
Most probably a high school lab. job.
Pillar of the Community
Learn More...
United States
801 Posts
 Posted 05/26/2018  8:00 pm  Show Profile   Bookmark this reply Add fortcollins to your friends list Get a Link to this Reply
It's a high school lab experiment (which is probably the best use for a Zincoln).

Stripping the copper plating is easy. It can be done by reverse plating with distilled water and Copper Sulphate, attaching the coin to the anode, rather than the cathode. Jarden Zinc plates the cent blanks with a double thickness plating on the edge and a single thickness on the faces. That would explain the residual copper on the edge of this coin, especially if the reverse plating used low voltage, such as a battery.

As thin as the copper layer is on the obverse and reverse of the Zincolns, a short bath in Ammonium Persulfate or Ferric Chloride would also do the trick, and have similar appearance with the residual copper on the edge.
New Member
United States
7 Posts
 Posted 07/22/2019  12:40 am  Show Profile   Bookmark this reply Add CoinNewb8 to your friends list Get a Link to this Reply
Just got saw this penny and it looks almost like the picture in the original post. This is a 2001 D coin that appears to have no copper but on the mouth area. Is this environmental damage as well?

Bedrock of the Community
Learn More...
United States
23054 Posts
 Posted 07/22/2019  01:29 am  Show Profile   Check Errers and Varietys's eBay Listings Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
CoinNewb8, yes that's Environmental Damage. PSD. Definitely a spender.
More information about Die Deterioration? http://goccf.com/t/317950
Retired U.S. Mint Coin Die Set information. http://goccf.com/t/302961
1973 D Lincoln Memorial cent With Recurring Die Subsidence Error Information. http://goccf.com/t/304624
Machine Doubling tutorial. http://goccf.com/t/332421
Die states progression on coins. Scroll down, so you can see the different die state progressions. http://goccf.com/t/325638
Die Deterioration Doubling Tutorial. http://goccf.com/t/336470
  Previous Topic Topic Next Topic  
 
To participate in the forum you must log in or register.

Coin Community Member eBay Sales

Certified Coins   Certified VAMs   Certified Errors  




Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2019 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us  |  Advertise Here  |  Privacy Policy / Terms of Use

Coin Community Forum © 2005 - 2019 Coin Community Forums
It took 0.84 seconds to rattle this change. Powered By: Snitz Forums 2000 Version 3.4.05