If I understand, you're pointing towards the devices on the reverse? If so, just Machine Doubling, not a doubled die. Also, a doubled die reverse is called a DDR. A DDO means doubled die obverse (front of the coin).
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