Unless my eyes deceive me the tweeter doesn't look original...but I could be mistaken.
]Here is a pic of the foam grills
Now if you could just find a pair of the Janzen made ULM's for the tops!
I think what Gary is referring to are some electrostatic arrays that you set on top of the speakers. If you search the Events and Happenings forum and find the Twin Cities mini-fest at Doucanoe's, there's some pictures of the arrays. They look like radiator fins resting on top of the speakers.