I have added some photos of Lernion, Australia & 6th level loco sheds as comparison to Michael Bishop's pictures. of course, they are much the worse for wear now, but thankfully, after all this time they still stand.
Actually, it is amazing what can be found at these sheds. I remember about 15 years ago, scratching about in the ash piles outside the one of the sheds and finding bent and burnt firebars from one of the quarry locos buried there - signs of an ashpan not being cleaned out!! I wonder if those bars are still there?
Cheers
Alan