Hi Randy/Tony,
I agree with Tony, when I first saw the photos I immediately thought Beck or Merlin. However on closer inspection, although the cylinders look very much like Beck/Merlin they have different front cylinder caps. Also, all the Beck models that are standard that I have seen have a similar large pressure gauge but they only had the scale in bar not psi.
This one has got me stumped. Very nice looking loco though 👍👍
Cheers, Alan.