Flat Shelf-Like Vs Actual Doubling Or RPM

The flat shelf like area is where the machine damaged the fresh new devices:

Note the affected area. The contour is removed, the swing damage leaves a flattened area and pushes aside the metal like pushed snow making the not affected area (Bu the MD) pushed upwards.






Because this is caused by the machine, even a doubled die can show Machine Doubling as well:








Machine Doubling is not a doubled die. On a doubled die, the doubling is on the die. Machine Doubling is caused by the machine, so it is not a doubled die. MD is a reduction of the contour of the devices (mostly found on the outside edges and some internal areas of the devices) damaged from machine movement, make a flat shelf like reduction on devices. Thus all coins that are struck with a doubled die, are doubled dies, even if they are MD also. (It is the collectors who determine if they want a doubled die with Machine Doubling them or not. I prefer not to have an example with MD either on doubled dies or RPMs. It just ruins it for me)
Taking images for showing the variety with Machine Doubling on the coin is like showing off images of your new car, with damage on it. (It ruins the affect to me) I know I said that twice, but just wondered if anyone noticed it the first time.

CoopHome : Machine Doubling reduction MD

Great info, thank you.