Is This Called A DDR?

Since seeing this pos, I've been pulling out all 2011-D's and I have found a couple with MD too. What's interesting is, it seems like the ones that have the date, MM, and/or "Liberty" doubled are the ones that end up having "LLO" and "NTS" doubled on the reverse. Why would that be?

Machine Doubling is caused by a normal die that has some machine/die movement during the strike. After an adjustment to the machine, the coins look normal again. The movement damages the devices. Often reducing the normal size of the devices. Here are a few examples:
https://www.coincommunity.com/forum...VICES_01.jpg
https://www.coincommunity.com/forum...VICES_02.jpg
https://www.coincommunity.com/forum...VICES_03.jpg
https://www.coincommunity.com/forum...VICES_04.jpg
https://www.coincommunity.com/forum...VICES_05.jpg
Note how the devices are reduced from normal size, looking flat and shelf looking?
Here is a side by side of machine damaged/normal/hub doubled:

Hub doubling creates (Most of the time) a doubled image, wider/taller:

Compared with a normal coin in a side by side you can see see how much the hub doubling is showing a spread:


To wrap it up, A normal die can create machine damage, just as a hub doubled die can created a machine damaged doubled die. So Machine Doubling is common and often not the same from strike to strike:


Machine damage is common and to me, doesn't warrant any premium. Some may find it interesting until through a couple of years note that is is common to find in circulated/BU/Proof coins. Here is an image that Charles Daughtrey created to help show the difference:

Movement from either die or both could make that happen. But the hammer die is the adjustable one and the anvil die is stationary. So I'm thinking it is mostly one die loose and the planchet is what suffers the movement and it probably the hammer die.

I always save things that are questionable. I found a 2006-D That looked interesting:

It was deemed as not a variety. But I still have about a roll of these. They were easy to pick out of rolls. They looked like proof coins in color/shine. I know they are not proof coins, but they stood out in the OBW rolls.

Well I can now added more information on doubled dies as I prepared another couple of images.

Here is a cut away illustration of a normal die and coin:

Note the uniform design that transfers from the die to the coin?

Here is a die that has received a hubbing not over the first exact spot on the die. This creates coins with the same variety each time.

On this one you can see a set of two devices with a notch (spread) between the two hubbing. All coins struck with this die will show this.

So you might start a new topic about die creation. That way the subject will be covered in a thread with that name. I've got a few photos that I haven't posted yet on that subject.