In a post a few days ago, I was trying to capture the luster without much success. While trying again I noticed the MM wasn't very clearly punched. So, out with the loupe, and with area up close saw a die scratch at the 7. It runs from the bottom of the left-side vertical serif to the 9. Variety vista RPM-002 is a match to the MM and the die scratch,IMO. http://varietyvista.com/13 Eisenhower Dollars/1971SRPM002.htm
Just in case this was missed I posted this on the Ike Group forum as some of the members here are members there also.