I found this beautiful coin today in a roll. Not sure if its a MD or DDR. I couldnt find any varieties so I need your help.
Unfortunately it’s MD, mechanical doubling, on the obverse. One clue on the obverse is if the date and mint mark is doubled it’s most likely MD. Mint marks were hand punched into working dies until 1989. The reverse shows die deterioration.
That "S" mintmark on new photos looks like it has machine doubling on it. You should check these two sites for markers. http://doubleddie.com/661976.html http://www.varietyvista.com/01b LC Doubled Dies Vol 2/DDO 1971-S.htm Just because a coin has sign of MD does not mean it was not struck with a Doubled Die.
I'm all in on MD. In fact, I also found the same coin last night while going through my sister's change jar. It looked just like yours.