Looks very similar to a lot of the other entries for this year, and the reverse is a little mashed on this one, but the mint mark placement and shape of the doubled serifs are making me lean towards WDDR-001 on this. A couple of Wexler's entries don't show MMs though, so I'm just gonna write "WDDR-001 or similar" on the flip.
Not MDD John, as I've looked at enough 1960-Ds to know a pretty small percentage have this. I would not be surprised if it were a doubled working hub, however, as there seem to be many quite similar listings on Wexler's (Brian's) Jefferson nickel page and on VV.
Thanks, Tanman! Yeah, doubt I'll be able to attribute this one sadly, but it was nice to find anyway.
Edit: Actually, looking again at the mint mark placement, I think it may be WDDR-001