800.004 worked 1K07, the 08:31 Bedwyn to Paddington passenger eastwards from Hungerford on 22 March 2022, during the brief period when IETs were reintroduced on a number of daytime Bedwyn - Paddington services. It's unusual to see these units working with the coupler exposed but it does happen occasionally.
PHOTO DATA FOR IMAGE 22-D-1286
camera : Nikon D610
lens : 70-200mm f/2.8
focal length : 135.0 mm
shutter : 1/800 sec
aperture : f/8.0
ISO : 180 ISO
original : Digital: 24MP NEF
SUBJECT DATA
Loco / Unit : 800.004
Train : 1K07, 08:31 Bedwyn - London Paddington passenger