Thanks all. I found my photos with ease. The two LR issues were after the change to A4, and not sorted neatly onto my shelves, so I can't find them.
Was there only sufficient track to move equipment out of the shed, or was there also a stretch of operating track? Everything was static for our visit.
Was the Clarkat 762 mm also? Had it been regauged, or was it sourced from a 762 mm gauge line?
Roderick B Smith