S-76A G-BISZ at Redhill in April 1985 (Photo: Peter Fitzmaurice)
Haven't been able to put my finger on an 80's shot of BIEJ but .. I do note in Peter Fitzmaurice's photo (above) that 'SZ' is wearing the Bristow title above the passenger door as per Dave Ed's photo.
It seems that Alan B must have asked Dave B

to paint some additional script on the aircraft (for Dave Ed's photo shows the Bristow name appearing on the for'ard cowling as well as above the door) meaning that for operation
'Maggs Aloft' either 'SZ' or 'EJ' was wearing
three sets of Bristow titles!