Sentinel 9387 Vertical Boiler Tank engine
This looks like a diesel but is actually a steam engine, technically a Vertical Boiler Tank Engine with chain driven wheels and gears (Whyte notation 4wVBT VCG). It was built by Sentinel & Sons (Shrewsbury) Limited as works number 9387 of 1948, and originally used by Roads Reconstruction of Frome, Somerset. The last owner was the Hanson Group, and until early 2015 9387 was on static display outside their Tytherington Quarry in Gloucestershire.
9387 arrived on the SVR in early 2015 for cosmetic restoration work to be carried out, and is photographed at Bridgnorth.