I traded into a "first Gen Colt SAA" but both my brother and I have some doubts as to whether or not it is an authentic Colt. Here is what I know... The S/N is 372XX This number can be found on the frame, grip and trigger guard. All the barrel says is Colt .44-40 The frame under the grip has a "67" stamp as does the back strap and the cylinder. The barrel is 4 3/4" long. I have not been able to find any other markings on it. Any info would be greatly appreciated! Thanks, -Adam I'll post pictures soon.