Definitely looks like MD. It is similar to the 1983-D DDO-002 2-O-VI listed on VarietyVista. There are a plethora of other markers that your coin would exhibit if it were one, but judging from the date and mint mark in your photographs it is Mechanical Doubling not a doubled die. The "9" and the 3" both appear too delicate and defined for this to be a DDO. I know just enough to be dangerous, though, so happy if anyone disagrees!