GWR 2800 Class, 2-8-0.

2859 is pictured here at Llangollen, on the Llangollen Railway on Saturday 27th June 1998, While awaiting eventual restoration work to be carried out on it.
Immediately above this loco is coach 34538, a MK1 AB21/BSK.

Photo and Scan: Ross Aitken (aos@cableinet.co.uk).