Hi Randy/Charlie,
Sorry I cannot be a great deal of help. It looks a commercial made or built using commercially made components. I am pretty sure it wasn't made in the UK mostly because of the large pressure gauge though it does have psi as well as bar. The cylinders look like the ones Beck used on their models also the fact it looks as if it is Gauge 1? The safety valves look more like the ones made and used in Mainland Europe a guess would be German. Would it possibly be American? I am not very familiar with American made models. If I come up with any other ideas I will be in touch.
Take care Tony.