I have a brass .44 with a Navy pattern barrel
I would not pay a lot for the revolver you are talking about. If it is good condition, I think probably 125.00 would be tops. (It is worth that in parts)
Mine has all the proof marks but only FIE on the floor surface of the butt as identification.
It is, as Hawg said, identical in quality to a C.O.M. Sheriff's model I am familiar with. (The previously discussed haunted revolver)
My reading of history convinces me that most bad government results from too much government. Thomas Jefferson