1974 D Kennedy Half DDR Identification

Looks like MD to me.
John1

Note the outside edges are affected. On a doubled the devices are enlarged in the center:

MD happens on the outsides of devices, because of swing of the dies right after the strike, hit them like a kick in the shin. On a doubled die, the hub creates the doubling, on the the die, thus the term "Doubled Die." But as Machine Doubling can affect normal dies, even doubled dies can be affect with the same issue. But on them, you can see the doubling and then the Machine Doubling only on certain areas in the direction the dies moved after the strike:

Note the yellow arrows, that is the Machine Doubling, the rest of the devices are showing a DDO.

The k you for all the help. I keep looking between the examples and ones I'm going through and I'm just trying to hone in on what the actual doubling looks like still. Thank you again for the time and examples