If memory serves, I seem to recall that there is a Ballantine can in one of the display exhibits at the National Museum of American History at the Smithsonian. Kind of in the same area as Archie Bunker's chair.

I was kind of into beer can collecting for awhile and it is amazing how many regional brands of beer in the US once existed. Seems like most (including Ballantine)were long ago absorbed by one of the majors.