Screw all the plastic!!
Stumbled onto this today. From what I can figure out this revolver is from a group of Model 3 Russians produced for the domestic commercial market. Chambered in .44 Russian, the serial number is 35896. There is a diamond with the letters SH stamped in the butt, denoting Schuyler, Hartley & Graham, the largest firearm dealer in the United States in 1860.
The seven inch barrel has the standard Smith & Wesson legend in English, not Cyrillic. The barrel does not look shortened.Overall the finish is dark, but the bore looks good, only a couple of minor marks. The front sight seems like it may be a period replacement. The lock up is excellent and the mainspring is strong. Pretty good condition for a hundred forty some year old revolver.