2000-P Sacagawea $1 Lamination Error Or PMD?

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

Author	Replies: 7 / Views: 2,764
GoldenChest Pillar of the Community United States 814 Posts	Posted 04/09/2016 11:28 pm My roommate brought me this coin and I haven't seen anything like it. No it's not a Cheerios Dollar and the error is on the reverse. I was thinking a lamination or gas bubble, but you can clearly see the details of the strike on the bubble. I'm not sure how it could be PMD since there is no damage to the obverse, aside from envmt. toning. Any ideas would be appreciated. Sorry for low quality pictures. Thanks in advance!! Edited by GoldenChest 04/09/2016 11:34 pm Report this Post to the Staff

John1 Moderator United States 56855 Posts	Posted 04/10/2016 05:03 am Just a guess here,looks heated causing a gas bubble. John1 Report this Post to the Staff
GoldenChest Pillar of the Community United States 814 Posts	Posted 04/10/2016 1:52 pm Do you think it was heat from the strike or something done post mint? Maybe an annealing error? There is no flex to the bubble when I press on it with a toothpick. Edited by GoldenChest 04/10/2016 2:19 pm Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 04/10/2016 2:53 pm Post mint damage. John1 Report this Post to the Staff
coinlover1899 Pillar of the Community United States 3058 Posts	Posted 04/10/2016 8:54 pm Cool looking! Report this Post to the Staff
GoldenChest Pillar of the Community United States 814 Posts	Posted 04/11/2016 12:35 am I thought so too! I really like how the details are preserved in the bubble, especially the eagle head. Definetly a keeper to me. I read an article and some posts on another forum saying that gas bubbles are cause by improper plating of copper to zinc core, all the articles I read are about post1982 cents since this is the most common coin for gas bubbles, I couldn't find anything about this on a $1 Sac coin. I'm curious if a similar thing happened here with the magnesium brass being clad to the copper core. And there is usually mutiple smaller bubbles instead of one large dome. You would think that on a larger coin the would be more area for the bubbles to happen. Odd but not impossible I guess. john1, I'm curious why you think it was done post mint vs strike error. I'm not really sure how to tell these things apart. Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 04/11/2016 04:53 am Quote: john1, I'm curious why you think it was done post mint vs strike error. I'm not really sure how to tell these things apart. I am no pro so IMHO: It has the look of being heated post mint and I have seen this kind of thing before but not on a SAC. If it was on the planchet pre-strike it would have been flattened. John1 Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 04/18/2016 3:01 pm This coin was heated and the separation left a bubble that formed between the cladding. PSD Report this Post to the Staff
	Replies: 7 / Views: 2,764

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 0.27 seconds to rattle this change.