I inherited the same pistol with box from my dad a number of years ago. I think his is a 1968 model and I have the original receipt. It's amazing how much firearms can appreciate over time. She's a showstopper sir and worth every penny. GLWS
Sir, if your box is original to your model 51 and I assume it is, the Standard Catalog of Smith & Wesson says serial numbers M60001 thru M99999 were made from 1973 thru 1977. I believe your revolver's serial number (M60136) falls in this range and could not be from the 60's. Still a very Smith &...
Smith & Wesson started manufacture of the Model 60 in 1965. They changed to 60-1 in 1972. This Model 60 no dash would have been made during this seven year period. Hope this helps!