2013 D ATB South Dakota Quarter DDO / DDR?

John1 what do you mean?

These devices are incuse, so they rules apply just opposite for these:
Raised devices doubled dies enlarge the devices.




Incuse devices reduce the size of the devices




Machine Doubling on raised devices, reduce the size of the devices.


Machine Doubling on incuse devices, enlarge the size of the devices.

No DDR's on these devices have been listed as doubled dies. I did a survey and 70% of the time, these quarters have Machine Doubling on them. Whether before/during/after the strike. They are not doubled die. On the Single squeeze dies all the doubled dies are on the center of the devices, obverse and reverses on the States and ATB Quarters.



So where are the doubled dies on these quarters found?
They are found on the target areas of the designs in the centers of the coins:
Obverses:
On the earlobes and the Motto areas:


Reverses:
Center of the design areas:











To find out where to look on the quarters you have check out this site for the listing posted there:
States quarters:
http://doubleddie.com/179401.html
ATB Quarters:
http://doubleddie.com/719755.html
This way you will know what areas to search for these on these quarters.


CoopHome: Are the rules for raised and incuse devices different on doubled dies and Machine Doubling?