Doubleing on 2016 Harpers Ferry?

I came across two of these quarters in a roll the other day and I am hoping to get some feedback. There is doubling (that seems more than machine doubling) on the lettering. You can clearly see on the "F", "E" and "2" there is a doubling. On the 2016, there you can see the numbers are larger and slightly distorted from a regular coin. The "6" is more of an egg shape center and the tops is much wider.
Is this a DDR or something else?

Thanks

 

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Strike doubling.

 

So strike doubling will make a completely separate letter or number with separation lines?

 

The second picture of the letters is true doubling IMO. Clear split serifs and characteristics of a doubled die.

 

There are several known errors on the 2016 Harpers Ferry Quarters, some involving doubling. The problem is, you haven’t described any of the known errors. I can see the doubling on your coin but I don’t believe it to be a doubled die. Welcome to CT.

 

This is incuse die doubling, a form of MD.
Awesome photos by the way.

 

Thank you for the information. What gets me is since these are incused, wouldn't the extra thickness of the letters be more of a DD then a MD?

 

Because the devices are incuse, any movement during the strike would cause them to get bigger. Doubled dies happen in the Hubing process, not during the striking process.