If the coin gets a slight split through the plating, then the zinc starts to rot/deteriorate. This can happen on any area of the coin. Even the outside rim areas, the columns, but mostly on the mint mark.
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