: The primary and most authoritative serial number is stamped on the bottom of the grip frame (the butt) . If your revolver has oversized "target" wood grips, you may need to remove them to see this number.

. Any letters appearing here are part of the serial number and must be included for accurate dating. Smith & Wesson Historical Foundation Other markings to be aware of include: Yoke Area:

On many Model 19-5 revolvers, the serial number is also stamped on the frame inside the yoke cut (the area visible when the cylinder is swung open).