I picked up 10 seated half dollars recently. The dates and conditions vary, unfortunately this one is not in the best shape but it's reverse is interesting. I know there are several DDRs for this year/mint. I'm thinking this is machine doubling but I'd like to get some other opinions. Unfortunately, I find it tough to discern between the different types of doubling and have trouble in this area. I've been trying to work on tgat. There are several interesting die breaks/cracks on the reverse though!