The Model 19 is a 357 Magnum
100-1000 USD or so
Gun shop or sporting goods store
it is a Model 39-2 9mm pistol
value of smith & Wesson model 5906 pistol
Smith&Wesson model 14
Model 91 is a model number for handcuffs. If you mean a Single Shot Model of 1891, the single shot pistol, 100-2000 depending on EXACTLY what you have and condition.
300-700 USD
Smith and Wesson 6909 Stainless steel semi-auto pistol stopped produvtion in 2001
357 Magnum
A fine pistol.
Smith and Wesson 9mm Model 39-2 Chrome finish.
The Model 57/657