D7535 is another Sulzer Type 2 locomotive (class 25), built at Derby works in 1965. It was first allocated to Nottingham and withdrawn from service during the early 1980s. It was put into storage at Toton, near Nottingham, where it was used to educate and train apprentices for all aspects of loco maintenance. This meant that, when it was put up for disposal, it was in excellent order. It was purchased by the Dartmouth Steam Railway before coming into the ownership of South Devon Diesel Traction and moving to Buckfastleigh in 2018.