I have a shower trim from ca2000 that I would like to replace. I cannot find any indication of part number or manufacturer and hoping the community can . It has a 3.375in stem with a 16pt broach (transitioned from a 20pt). "Off" is 12oc and rotates clockwise from off-cold-hot. The escutcheon mounts with two screws located at 2(ish) and 8(ish) o'clock. The valve is Speakman, but they said it is not theirs, but they made valves for many other manufacturers. I have tried google image search, reached out to several of the bigger manufacturers, but no luck.