EPU are incuse devices. So when they are enlarged, that is
Machine Doubling. When they are hub doubled, they are reduced in size. The best way to convince is to see them all on a coin with raised and incuse devices (All devices are compared with a normal example and with a know die number. So here we go:
Raised DDR devices:





Incuse DDR devices:


So raised and incuse devices act just the opposite. Same for
Machine Doubling, it also is opposite on raised and incuse devices. So here is what to help change your thinking.
Raised devices are enlarged on a doubled die, the contour is removed on Machine Doubling.
Incuse devices are reduced in size on a doubled die, but are enlarged on Machine Doubling.
Just the opposites of what we knew in the past and did not realize this. The 2013
DDR I posted was what alerted me to change our thinking. Also the reverses of the
ATB Quarters on the outer ring are incuse. So if you see a doubling there, it is also
Machine Doubling. The real doubled dies are on the center areas of the designs on the single squeeze dies, which all the States and
ATB Quarter are and other dies going forward. This changed the doubled die searching.
Look at the sites to see what to look for on doubled dies because they new setup shows hub doubling in areas you are looking at. And the places where you used to find doubled dies are not the affected areas any longer.
Look at the sites. Know what to look for and save your eyes a lot of strain,
from looking in the wrong places. CoopHome:
Seems like I'm not find the doubled dies on the new coin as easily and when I find something, I'm told it is Machine Doubling or DDD. What am I doing wrong?