43142 runs through Slough on the relief line.

43189 approaches St Germans with a train for London.

43122 approaches Chippenham with a London - Bristol express.

43146 passing Blagrove near Swindon.

43030 in Sonning Cutting during the Summer of 2016. This was the sweet spot between deforestation of the iconic cutting for electrification and the installation of the masts and catenary.

43002 passing Sonning Cutting during the Summer of 2016. This was the sweet spot between deforestation of the iconic cutting for electrification and the installation of the masts and catenary.

43091 rushes through Twyford.

A High Speed train on the Great Western Main Line at Saltford.

Repainted into original 1976 colours, 43002 passes Bourton bound for London Paddington.

Masts now approaching! 43126 hurries along the Great Western Main Line at Ruscombe, near Twyford.

43130 passing Magor, en route to London Paddington.

43003 at Sonning, en route to London Paddington.

The new GWR colour scheme is tricky to photograph, but comes out best in rich, low angle lighting conditions. Here 43188 has just left Bodmin Parkway with the 1406 Paddington - Penzance.

43172 was wrapped in this special scheme as part of the centenary of the First World War. It was named Harry Patch in memory of the longest surviving soldier of the Great War.