I have one that I bought from a gun show "junk box" a couple of years ago for $60. The trigger return spring is broken, but it is otherwise functional, and even retains some of the original silver plating.
They are usually described as solid frame, but they are not one piece. The barrel and basic frame are one piece but the grip and trigger guard are another piece. The two pieces are held together by screws.
Some folks doubt that barrels were actually made of brass, but the MH barrels are, rifling and all.
Jim