Granulous 1983 D Lincoln Memorial Cent / LMC

To participate in the forum you must log in or register.

Author	Replies: 7 / Views: 1,584
quiquelo Valued Member Colombia 86 Posts	Posted 10/22/2010 7:04 pm Hi all. Found this 1983 D LMC which has a very granulous reverse side, does anyone know why or how this happens? It is more evident in the memorial bays. I thought it might be the 1983D-1MM-001 on coppercoins but I'm not sure. I'm sending a picture of date and mintmark too. Thanks! Report this Post to the Staff

jakeW Pillar of the Community United States 689 Posts	Posted 10/22/2010 7:29 pm Struck Through Grease maybe? Report this Post to the Staff
Adam_E Pillar of the Community United States 4846 Posts	Posted 10/22/2010 7:48 pm it looks like some zinc bubbles Report this Post to the Staff
Manuel Valued Member United States 163 Posts	Posted 10/22/2010 7:49 pm Isn't that the trapped gas in the zinc? I'm probably not right. Oh, I didn't realize somebody else had already posted that. Edited by Manuel 10/22/2010 7:49 pm Report this Post to the Staff
quiquelo Valued Member Colombia 86 Posts	Posted 10/23/2010 1:51 pm Zinc bubbles make sense. How about the mintmark? Is the white area surrounding the D a plating problem? Does anyone know how this happens? Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 10/23/2010 7:35 pm The plating issues were a problem till they got the right rinsing technique. That is why the 83-85 cents have these bumps. Poor rinsing happens at times on other years, just not as bad as the first few years. Not a RPM just split plating on the mint mark. A lot of these have this and they get worse with age. Edited by coop 10/23/2010 7:37 pm Report this Post to the Staff
quiquelo Valued Member Colombia 86 Posts	Posted 10/24/2010 5:02 pm Wow, Coop, thanks! I'd like to come along a coin like the ones in your pictures! Report this Post to the Staff
BadThad Bedrock of the Community United States 19979 Posts	Posted 10/24/2010 7:10 pm It's just a typical, early Zincoln crappy planchet with lots of gas bubbles under the plating. On the MM, it's split plating which is all very common on this issue. Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
	Replies: 7 / Views: 1,584

To participate in the forum you must log in or register.

All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

View Last 100 New Topics

View Last 100 Active Topics

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 - 2026 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

It took 0.28 seconds to rattle this change.

Granulous 1983 D LMC