"The original wood building which spanned two parallel lines built circa 1890 was dilapidated by 1913, and what remained of it blew over in a gale in 1927. There after the "shed" area was open to the elements."
Comment added:
I think these locos are J73 and J74. The J73 (NER Class L) have the safety valves and the J74 (NER Class 8) have the upside down plantpot aft of the dome.