67027 Charlotte brings up the rear of the 1Z23 07:08 Bristol High Level Siding to Tyseley Network Rail test train at Appleford on 15 August 2019. 67023 Stella is at the front of the train. I certainly wouldn't have bothered to go out specifically for this, especially on a day of such unpredictable weather, but as I was standing on the bridge anyway, the picture was taken.