43.295 and 43.290 crested the summit at Limpet Mill with 1W11, the 10:00 from KIngs Cross to Aberdeen, on 26 June 2019. for some reason the through services to Aberdeen and Inverness were given '1W' headcodes in May 2019, while those terminating at Glasgow or Edinburgh retained the traditional '1S'. What the 'W' stands for is anyone's guess.
PHOTO DATA FOR IMAGE 19-D-1582
camera : Nikon D600
lens : 28-300mm f/3.5-5.6
focal length : 65.0 mm
shutter : 1/1000 sec
aperture : f/9.0
ISO : 400 ISO
original : Digital: 24MP NEF
SUBJECT DATA
Loco / Unit : 43.295, 43.290
Train : 1W11, 10:00 London Kings Cross - Aberdeen passenger