I didn't know it at the time but this was probably the last time a DBC loco worked china clay tanks from Aberdeen Waterloo, with Colas handling subsequent trains. 66.035 passed Newtonhill on 26 June 2019 with 6D84, the 14:05 to Mossend.
PHOTO DATA FOR IMAGE 19-D-1570
camera : Nikon D600
lens : 28-300mm f/3.5-5.6
focal length : 55.0 mm
shutter : 1/800 sec
aperture : f/9.0
ISO : 400 ISO
original : Digital: 24MP NEF
SUBJECT DATA
Loco / Unit : 66.035
Train : 6D84, 14:05 Aberdeen Waterloo - Mossend Down Yard china clay tanks