$550, more less, depending on condition.
100-500 USD
100-1000 USD depending on the usuals.
The Smith & Wesson Model 25-2, with serial number S283902, was produced in 1978. This model is a .45 Colt revolver and is part of the Smith & Wesson N-frame series. For precise dating, referring to the specific production records from Smith & Wesson can provide additional confirmation.
Glock, Savage, Colt, Winchester, Remington, Smith & Wesson, MossbergColt, Savage, Henry, Mossberg, Remington, Smith & Wesson
100-450 or so
colt also made the model 1917 revolver in 45 cal. the S&W (depending on overall condition) could bring anywhere from $200 to $600. If in mint condition maybe more.
colt 357
there are dedicated web sites for colt and Winchester manufacturing dates etc. Google it
Don't use 32 Long Colt ammo for this revolver!!
The Book of Colt Firearms. History of Smith and Wesson. Standard catalog of Smith and Wesson. Ruger, the man and his guns.
Remington, Mossberg, Colt, Springfield Arms and Smith & Wesson
S&W never made a detective special. Colt made the Detective Special