I go with MD. The date and MM have the same doubling and, as they were hand punching the dies they would not look the same if it were true hub doubling
I'll take MD for $500 ! On a rolls guys , Just joking @cplradar . Sorry to correct you but it's Doubled Die . Not whatever you said . Once again no harm intended .
Variety Vista and Wexler have no known DDO or DDR for this date and mint. I repeat my answer from post #3