I didn't know any of these auto-trailers sets had survived, let alone restored to running order..
Which railway?
[For anyone a bit puzzled by the apparent lack of a locomotive, these were designed for short branch-lines with no locomotive turning facilities at the terminus. The power-coach has an integral boiler, motion-work and driving-cab. The rear of the two-coach train has a second cab used by the driver for the return trip, with its controls linked to the "power-car" end. A sort of steam multiple-unit. The vast majority of branch-lines though were worked by short trains drawn by conventional locomoties "run round" the train at the terminus by using a parallel track, without turning it round. A steam-locomotive runs equally well in either direction, but a journey of even a few miles in reverse must be very uncomfortable for the driver. ]
@ArishMell Glad you liked it. That's what I mostly watch on YouTube. There's are many good things on there. I pay not to have adverts, so it's even better.
@FreddieUK Be careful... it can be addictive! I once spent about two late-night hours learning how to scrap ships, India style - and how to use steel plate cut from a hull, to make a replacement bucket for an excavator.
(That was wonderful to watch. The chap who did it, mainly on his own, had very steady hands, and was a real expert at flame-cutting shapes to chalk lines and welding them together with very simple equipment. I'll not look at a 'Harvest Morn' conflakes carton again without thinking how he cut templates from one! The finished bucket fitted the tractor arms as if made in the original factory.)
@BeachGirl47 I think it's called an "auto-trailer".
It's steam-powered but instead of using a separate locomotive to haul the train, it uses a leading coach with the boiler, machinery and driving-cab in a compartment at the front end. The trailing coach has a driving-cab at its rear end, with controls linked back the underfloor engine, so the driver has a clear view for the return trip.
Think of any modern train. The steam auto-trailer's principle is used in the present-day trains that have their electric motors or Diesel engines under some of the coach floors, and a driving-cab at both ends.
@Convivial Why would they not? Few of these were built, but it's a steam-powered precursor to the Diesel or electric multiple-unit trains, with a driving-cab at each ened, now used the world over.