Smith And Wesson Revolver Serial Numbers Database [patched] -

It is important for collectors to distinguish the serial number from , which are often found on the frame and yoke when the cylinder is open. These assembly numbers were used only for fitting parts during manufacturing and do not correspond to the gun's permanent identity or ship date. Accessing the Database

Does the revolver have a 4-screw sideplate? That changed to 3-screw in 1961. Your 1957 gun should have 4 screws. If it has 3, something is wrong. smith and wesson revolver serial numbers database