As far as you know? Did you attend the hearings?
Didn't have to. They were televised and videotaped. There used to be guys who'd sell you the whole thing on VHS, and I'll bet you can find the bulk of the hearings (and maybe everything) if you look long enough on Youtube. You don't have to do that, though. The hearings were also transcribed and printed as the first five volumes of the HSCA set. You can search those if you wish. I've never found where they showed CE573 (also "walker bullet," etc) or a photo of it.