[redware]

I think the pre 29s were made in batches with different numbers at the hinge. Any info regarding 74674 with a 2 slightly above and in front of this #and a 3 below it.

 

[Oneida Steve]

Those single-digit numbers on the crane are just assembly numbers from the factory. Check under the grips for the true serial number. It's on the bottom of the frame.

All pre-29 revolvers had serial numbers beginning with the letter S and starting about 1670000.