My visit to "Locomotion, Shildon" (NRM) today.

Thanks Keith. It is one of many built for operation in industries such as gas works or petrochemical plants paper mills etc where there was a serious fire risk. The locos "boiler", actually just a receptical for high pressure steam, was charged from a boiler house that probably supplied steam for the whole plant and when fully charged, would run happily for a couple of hours before needing a re-charge.

Cheer's, Pete.