Ref your Hawes Western Marshall .44 magnum revolver, see the thread on J. P. Sauer and Sohn revolvers a couple weeks ago.
Your revolver was manufactured by J.P. Sauer and Sohn in West Germany and imported by Los Angeles importer Hawes in the early thru late 1970's. The Western Marshal model was blued, with polished brass grip frame and dark (rosewood?) wood grip panels. It is a cosmetically similar copy, but not dimensionally identical, to the Colt SAA. The cylinder is larger diameter, and a frame-mounted firing pin handles the high pressure .44 Magnum cartridge. .22 rimfire models had diecast zinc alloy barrels and cylinders lined with steel tubing. Your gun was one of a series of models designed to be moderately priced and have cosmetic appeal to the western/sixgun fan: Silver City Marshall (nickel plated with faux pearl grips), Western Marshall, etc. They were called "the poor man's commemoratives" by gun magazine writers.
It should be an adequate six-gun for light or moderate duty use. In my experience after shooting, owning, and repairing several of this model in .44 Mag, .45 Colt and .357 Mag calibers, it will not hold up to heavy duty use or extensive shooting. Problems encountered include: cylinder endshake and excessive barrel/cylinder gap, trigger/hammer sear wears out, ratchet/pawl wear, peening of the frame mounted firing pin, front sight looseness, action and grip screws loosening, and ejector housing screw strips out. Many of these "faults" are characteristic of the original Colt design, but in this model, many of the problems can be attributed to metallurgy and quality control issues.
If the price is right, and it is in good condition, it is a good buy as long as you understand it's limitations.