This revolver appears to be one of the pre-production prototypes S&W made for the Russian No.3 revolver contract. Its frame has been expertly converted to a birdshead style. It handles very nicely, but was apparently not ultimately desired by the Russian purchasing commission, and the design was not used beyond this prototype sample.
The post Prototype Birdshead Grip S&W No.3 Russian first appeared on Forgotten Weapons.