While roll searching, I came across a 1991-P quarter and can't decide if it's a DDO or MDD. The only area where the form of doubling is visible is in the motto, "IN GOD WE TRUST." I'm coming here to ask you two things: 1. Would you consider this a DDO or MDD? 2. Is it possible for a coin to be a DD, yet the doubling only appear in one portion of the coin?