I really don't know. I would take BU and others advice on this. I have my opinions, but I have not been properly trained in this department.
Im not sure what kind of doubling it is, but it looks to be doubled on the "Unum"..let the experts weigh in though
The bad news is, looking at Matthew's new pics on post # 20, there is not DDR on that coin. The good news is, Matthew paid melt for the coin, which is basically what it's worth.