It's important to note the MD on the mintmark. On the big deal
DDO, the mintmark likely would not be doubled. It is possible, but seeing that is the first step in determining what you have.
In Memory of Crazyb0 12-26-1951 to 7-27-2020
In Memory of Tootallious 3-31-1964 to 4-15-2020
In Memory of T-BOP 10-12-1949 to 1-19-2024