London Trolley Bus at the Leyland factory shortly before delivery to London Transport. Both the body and chassis were made by Leyland. No 735 was one of London Transport's 100-strong F1 class of trolleybuses provided by Leyland in 1937. The F1s served London Transport very well, proving to be sturdy and reliable vehicles despite operating on some of their busiest trolleybus routes. 735 served with LT until April 1959 and went for scrap the following month.