Another excellent photo that has been found and this is probably better than most for its detail. Thanks to Geoff Robinson

 The repairs to the wall of both the signal box and the station shed can clearly be seen where the accident damaged them when the trucks came adrift (I think you have the very poor picture of this already).  The signaling is interesting and the gates are old.  In the distance a steam train is about to shunt the guards van back into the sidings on the left (out of sight) and then push the empty coal hoppers up to Blackyboy for collection.

I cannot remember taking this photo – any idea of the date?