No.1001 County of Bucks from 87H Neyland - is it at Ebbw Junction? Neyland passenger locos did not normally work past Cardiff and the coaling stage is a double track two sided one and not Landore or Canton.
Its not Llanelly - although it had a 2 track double sided coal stage the "ramp" was a grass bank - not on arches as shown here. Also the entrance to the coal stage had a central pillar - this one doesnt have that. On the right appears to be the remnant vertical pillars of a WW11 Ash pit Cover which Llanelly never had.