I suspect the "DuBose Room" is actually the "Dubose Gallery" which has the massive button and buckle collections and some other personal items and is part of the exhibit that the Atlanta History Center calls "Turning Point: The American Civil War". Much of it is DuBose material but a good bit is not including the Dickey collection. Much of the Dickey collection is on display in the glass case the Mike showed the image of. Other pieces are spread throughout the Turning Point exhibit where they might add to another display item. There is also some amount downstairs in storage as well. The "Turning Point" exhibit hasn't changed a lot in quite a few years. But if you haven't seen it I'd highly recommend it. If you like relics, few museums can compete.