I have the same exact shifter, it came with my 94 Eclipse and I later put it in my GVR. Don't ask me who made it, all I know is that it seems to be a quality piece carefully constructed. Only problem I had with it was that the plastic bushings wore out, which I later replaced with OEM units. They fit just perfect, which goes to show the quality of the work. The Galant has never shifted better before I installed it either.
If you notice, it is about 1.75" shorter than the stock DSM shifter, the stock GVR4 shifter I believe is about 2" on top of that. My wife has short arms, but she can actually reach this type easier than she could with the stock DSM unit. I think it holds the shift handle closer to the driver's side than the DSM unit did.
Nice find!
If anyone knows who made these, please let me know, as now I'm curious.