The crane yoke on a Smith & Wesson revolver is part of the cylinder assembly, connecting the cylinder to the frame of the gun. It allows the cylinder to swing out for loading and unloading. The yoke is typically located on the right side of the revolver, pivoting at a hinge near the frame. In contrast, semi-automatic Smith & Wesson pistols do not have a crane yoke, as they utilize a different mechanism for operation.
If it is a semi-auto and made after 1957 it will be on the frame. I.E., Model 39 or Model 645-2. If by pistol you mean a revolver, you will have to open the cylinder and look in the recess where the crane/yoke rests.
No model numbers used before @ 1957. After that, look inside the crane/yoke area.
Realistically, you can't. If you give the sn, the best you will get is range of models. If it has a model number, it will be stamped on the revolver inside the frame by the yoke/crane assembly.
Made in 1950. You can get a factory letter for 50 USD
Model 686 (plus/seven shot). Covers several barrel lengths. Should be visible on the inside of the yoke.
They are assembly numbers.
1970 to 1972
Smith & Wesson serial numbers can typically be found in several locations depending on the type of firearm. For handguns, the serial number is often located on the frame, usually on the right side or under the grip. For revolvers, it may also be found on the cylinder crane or yoke. For rifles and shotguns, the serial number is usually stamped on the receiver.
S&W Frame and Yoke Numbers LocationHello, You are asking a question that has a wide spectrum of answers. Depending on the year, model and type. You may find your answer at Jim Supica's site thearmchairgunshow. He has written books on these fine firearms.
You must provide the sn or call S&W with it. The Smith and Wesson model 19 3rd change(19-3) was made by Smith and Wesson from 1967-1976.The serial number should be found if you swing the cylinder out and look at the yoke just below the barrel.
All of them have the serial number on the butt. Some of them have the same serial number on the bottom of the barrel above the extractor. Some have it on the back of the cylinder and the extractor star. Some also have it on the back of the yoke or crane visible through an empty chamber. There is also usually an assembly number on the frame below the barrel inside the crane area with a matching number on the matching surface of the crane. sometimes the grips are also serial numbered the same as the revolver. <><><> Of course, you will also find Smith & Wesson, their logo, and the words "Marcas Registradas". S&W had problems with spanish makers copying their weapons.
The serial number on a Smith & Wesson .38 revolver is typically located on the underside of the frame, just above the trigger guard. In some models, it may also be found on the cylinder or the yoke. For more specific locations, it’s helpful to refer to the owner's manual or consult a firearms expert.