There's the 'Mytton Gif' which shows the 'bone flap' almost back in situ and not hanging down by the side. The damage shown agrees well with Robin's graphic of the damage to JFK's skull. It appears the BF has been pushed back into position:


We also have these images of the BF in different positions:


It would be interesting to get some kind of chronology of these photos.
One aspect of the case that I feel needs explaining is that so many people seem to report a blowout at the back of JFK's head when, in fact, almost all of the top right portion of JFK's skull has been blown out, from front to back.