Hi. I'm new on the forum, though I've been a visitor a lot in the past, and came across this thread as I did a search on Exhaust Steam Injectors. I am building a highly accurate 5" gauge scale model of Evening Star, to works drawings (all 650 of them). One major problem I have is the Davies & Metcalfe Exhaust Steam Injector. There is no scale model of this injector made. Is there anyone on the forum who might have access to the drawing for the main casting of the D & M Exhaust Injector as used on all Class 7, 8 and 9f locos? Any help would be greatly appreciated, so that I can go about making a pattern to get one cast. Bob.