37421 slowly approaches Ascott-under-Wychwood on 23 February 2017 with the 1Z23 07:14 Bristol High Level Siding to Tyseley Network Rail test train. 37254 is on the rear. As this would clearly be held at the next red signal, due to the previous late running HST, it was easy to nip round to Ascott-under-Wychwood station for a second picture.