I believe this is a left over die scratch that hasn't faded as much in cent of the mint mark as it has already faded on the fields. The die scratches fade quicker in the open fields and next to the devices and inside the devices they remain. If you rotated the coin a bit and took another image of the date area with the light falling across that area, the die scratches will be seen. Not a RPM. Just die scratches.
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