Shower stem identification

[cabrera24]

Trying to replace the shower stem on the hot side of my shower. No markings whatsoever on any parts, faucets, knobs, etc.

I did not know how varied this particular piece can be. Any help on what replacement part I need is much appreciated.

Broach count is 16 if that helps any.

 

[Mr_David]

lay a tape along side of it and take another picture might help.
I have a book that sorts them by length. If I got time I'll look through it.

 

[cabrera24]

I guess the picture was at a little bit of an angle but it is 5 1/8 inches.

 

[Mr_David]

6 - 2 = 4

Looks kind of like a Price Pfister but don't think that's it.
Found another one similar, Central Brass, but don't think that's it either.

you have a picture of the seat or maybe the handles might help