I doubt that that revolver was made anywhere near Europe (or the Americas). Everything about it looks to me like the product of a place like the Khyber pass, which has a long history of producing crude but working copies of Western firearms.
The sideplate appears to be a poorly fitting and non-original part, possibly from a real S&W revolver. The gun has little real value, either as a working gun or a viable weapon for self defense. But it is a novelty and as such demonstrates that when people want weapons, for good or ill, laws will be ineffective in preventing them from obtaining arms.
Jim
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