Scott, thanks for posting the photos.
-Photo #34, Brush engine, presumably there once was a generator where the water tank not resides. Is this an unusual engine? I have seen much larger Brush engines in photos, don't recall the small ones.
-Photo #41, looks like a Lister diesel driving a vacuum pump, which in turn is driving.....some kind of mechanical indicator??? Looks interesting, anyone know what this display is about? I presume the cabinet alongside has some significance too? Best I can guess is a system for delivering canisters around a building...probably way out.
-photo #52, is that a Crossley in the background? Anyone know the details of this nice little engine? Also the rusty vertical in the foreground looks interesting - anyone got a name?
Thanks for any replies!