Running 52 minutes late, 43251 passes Circourt Bridge, Denchworth, on 10 August 2023 with the 1Z23 06:45 Bristol Kingsland Road to Derby RTC Network Rail test train, with 43272 bringing up the rear. I was very lucky here, as not only did it pass in a very brief sunny spell (note the background), but also the picture could easily have been ruined by the 1B11 10:48 Paddington to Swansea GWR IET, which was rapidly approaching from the opposite direction.