72 D Kennedy DDO

Are you looking at the "2" in the date? That looks like Machine Doubling. Note how the overall size of that device is reduced in size on the device? It is flat shelf like? Then it is Machine Doubling. On a doubled die, the devices would be enlarged.

Here is an example of a hub doubled die's coin:

Note the notching on the deices? Note how much wider the devices are? Note they just don't happen on one device?

If I'm not seeing what you are, then point me in that direction.

Machine Doubling is is cause by die movement during the strike. I call this machine damage. It reduces the devices by shoving them a little.
Here is an example. The die is a normal die, but because of movement of the strike it is different from coin to coin.

Note the flat shelf like area on the dates that are different from coin to coin? They all were from the same die pair as there is a marker on the die that is visible on each coin.

Post mint damage is what happens to the coin after it is struck. Maybe a coin nicked an area, circulation damage, coin wrapper damage or deliberate. On a machine doubled coin this can happen during the strike or during ejection.

There is too much glare in that area to see anything. You might want to diffuse you light source so we can see more of the doubling better without the glare.

Here is a minor DDO I found once. It probably isn't even listed:

On the "R" you see the extra hubbing in the SW/NE loop. Tops of the "U" shows notching as well as the lower "S" end. Hope this helps. I love it when it is so obvious:
Tripled die
https://www.coincommunity.com/forum...64_D_TDO.jpg
Doubled die
https://www.coincommunity.com/forum.../1966_DO.jpg