Depends on the model, finish, barrel length, number of rounds it holds, grips, etc. 150-700 would be a best guess.
The value of a Smith and Wesson Model 51 22 Magnum Revolver would actually depend on a number of factors. Some of these factors would include the age and condition of the Revolver.
The model number of the revolver helps alot then i will tell you the value
The value of a Smith and Wesson 11590 revolver 22 long rifle CTG depends on its condition. This gun in excellent condition is valued between 425.00 and 575.00 as of 2014.
100-1000 USD
Depenidng on the exact model, 50-1500 USD
50-500 usd
100-450 USD or so
Anywhere from $300 to $550.
10-1000 USD depending on specifics
1948; 100-800 USD or so
Impossible to answer without a detailed description.
Between $200 and $600 depending on condition