Looks like a contact mark from the edge of another coin to me. There are two similar marks in this picture: one at the bottom of the 1 and one on the rim. The mark on the 1 clearly has displaced metal, likely meaning PMD.
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