So checked my log and flew the following BY 737's:
10.02.83 LTN-GVA G-BGYL
17.02.83 GVA-LTN G-BFVB (named Sir Thomas Sopwith)
15.02.92 ZRH-LGW G-AVRN
It has always provided me with a bit of nerdy amusement that my first BY 737 flight was in a G-BG reg aircraft, and my last, some 9 year later, was in an "original" G-AV aircraft.....
'YL of course ended her days plummeting into the Panamanian jungle, with COPA, in what was "suspected" as one of the early rudder hard over incidents