1984 DDO LMC

Appears to be Machine Doubling, but the notching on LIBERTY makes it confusing. But on the big one for that year doesn' have the notching on the tops of the devices of LIBERTY.
http://www.coppercoins.com/lincoln/...ie_state=mds
But more is involved on a doubled die. The devices on the link above enlarge the devices. I don't see that on your images.

The reason so many are found together is probably they came from a roll/rolls that were OBW rolls. If they are machine doubled, the doubling should be different from coin to coin in the slightest. If they are a doubled die, then they should all be exactly the same. Here is an example:

When looking at these images, they are all different but are from the same die as you can see a common marker on each coin. (NW/SE die scratch)

So if you could compare the examples to each other and see if all have the same exact notching on LIBERTY that might help with that information. There are cases where a coin can be machine doubled and a doubled die. But I would like for this information first and see if they reveal something about the batch of coins.
Coop

Looking at the obverse image, the coin appears to be normal sized devices.

Try placing the light at 12:00 on your next batch of images. I think the side angle direction of the LIBERTY is reflecting strange. Notice on these image how the overal device looks wider. It is at 12:00 on the date. The WE the light is at 6:00. But normally I use 12:00 position for the lighting. (The light is fixed on my scope. I achieve the different light directions by rotating the coin.)

All I have is a little USB microscope. It has a bunch of LEDs on the end so The lighting moves with the angle of the picture. I tried taking them from 12:00 (picture and lighting) but that was kinda tricky. I decided to put it in a 2x2 and shoot straight down (tough to do without the flip when the scope is part on and part off the coin).

So, here's what I got. I also took some pics of WE and TRUST. These are all coin #5 (same as above).

The coin in question in this thread was struck by a die suffering from deterioration. The "doubling" you see is slightly recessed on the coin - a shadow effect - on the outside of the devices. This is one of a number of ways that die wear manifested itself in early zinc cents. It is very common and carries no premium value.