Need help to identify maker of this shower

[FredaNJ]

If any of the experts here can identify the maker of this shower, I would greatly appreciate it. Many thanks.
I would post photos directly into the post, but haven't been able to figure out how to do that.

https://flic.kr/s/aHsktd6AG1

 

[Mr_David]

Take off the valve cover plate. Maybe someone can help if they can see the valve.