Nice pics, NL, better than mine! If only the stories told during the afternoon could have been recorded for posterity. BA engineer who used to work on them at LHR, chap who made them back in the 60s (said they'll have fun getting the wings off, as there isn't a bolt in sight, all shrunk fastenings), guy who had '147 as his "wedding car" 15 years ago, complete with ribbon from the refuelling probe, someone whose dad made the flight engineer's throttle lever assembly (probably one of the only original bits left on the flight deck), and many more, from all over the country.
Strangely, one of the RAF ground crew was up on an elevated platform opening panels on the APU and engines and doing something inside.
End of an era, but well marked by those there.