The devices on the outside ring are incuse on the coin. (raised on the die) so the slightest movement of the die makes Machine Doubling appear. All the the DDR's are on the central area where yours is showing a DDR. But so far no DDR's are found on the dates yet on these. MD can be found on about 70% of these ATB Quarters. Mild to extreme, but none are doubled dies. The upper area had a DDR. Which one?
http://www.doubleddie.com/1319040.html
31 to check out on that site.
http://www.doubleddie.com/1319040.html
31 to check out on that site.






















