Identifying shower valve

I find it impossible to identify brand and make of my shower valve. Nothing written on trim/plate/faucet/handle. I would like to avoid to have to remove the whole valve to find out. Anyone recognizes shape and form? Appreciate any input. [IMG_5796](//muut.com/u/brownstoner/s1/:brownstoner:7T5R:img_5796.jpg.jpg) [IMG_5797](//muut.com/u/brownstoner/s1/:brownstoner:W5vr:img_5797.jpg.jpg)