Rothschild!
Curiouser and Curiouser.
That would be the Rothschild GIV - nice colour scheme, not.
Some years back DL was being considered for management of aforementioned aircraft.
Crewing to be shared with DV and the South African GV operation based out of Farnborough.
Not sure of the outcome but believe the Rothschild family saw the light just in time.
Incidentally it's not difficult to guess where most of the SA Farnborough based guys got their GV rating.