Can't prove a DDO with pictures of the reverse. I assume you mean DDR. I've seen that doubling of the pillers before but I'm not sure what it is. Seems odd to me that you would have doubling in tow different and opposite directions. About the only way I could see that happening would be from distorted hub doubling. (Die hubbed using two different hubs, old old worn and spreading, the other newer and sharper.)
If you go to this page you can click on the reverse and enlarge it and you will see that the apparent Doubled columns are part of the design to show depth within the memorial and are internal columns. No visible doubling on the coin presented. https://www.ngccoin.com/coin-explor...e-1959-2008-pscid-100/1997-1c-ms-coinid-13136
