An update...I sent this a month ago and got it back 2 days ago. John Wexler says this is indeed a new variety that he will include in his listings...WDDR-004 is born. His website doesn't show it yet, too new. Close up of the doubling: I actually found this 14 June 2020 and hemmed and hawwed about sending it to Coneca or John. Finally got off the dime and sent it in to him. I think John will say it is "2 diagonal partial columns" when he updates his website...Enjoy!...Spark
Very nice find. And odd to see a DDR on a D mint from this era. I have rarely encountered D mint DDR's but I do live in the N.E.
Searching pennies, nickels and dimes always gives me headaches, but it's good to know that someone has some success with them. Congratulations!